Shawn Scott did not expect to spend his Sunday engaged in a Twitter back-and-forth with a food delivery service based in Austin. The founder and CEO of the Exposition Park-HQ'd nonprofit called Hack My Future had far more pressing things to deal with, like prepping the curriculum for computer-coding summer camps. But sometimes, you just can't help but drop everything and hop in the ring. Sometimes, the fight picks you.

"And it needed to be done," Scott would say later, taking a breather between rounds. "It is what it is. People need to talk about it and call people out when they're wrong and fix it. Because acting like nothing's going on is not working out well."

Here is what's wrong. Very, very wrong.

Favor, the food-delivery app that launched in Dallas in 2014, does not serve southern Dallas. And it's very, very blatant about excluding the city's southern half: Its current delivery-area map uses Interstates 30 and 35E as its hard boundary lines. The map, which replaces the more familiar red line with a blue boundary, is an ugly thing to look at — a shameful shorthand history of racism in Dallas made by people who do not even live here but, from a distance, bought into the city's worst stereotypes nevertheless.

It means, in short, that someone living or working across the street from Fair Park cannot get food delivered from Deep Ellum, which is all of two miles away — a 10-minute drive, maybe, if you hit every red light. No Monkey King Noodle Co. for you, no Pecan Lodge, no nothing. Same goes for people living in Red Bird or Cedar Crest or far West Dallas — places where, according to City Hall, more than half the population doesn't have easy access to transportation or a full-service grocery store.

Shawn Scott is founder and CEO of Hack My Future.

Until Friday, Scott had never heard of Favor, which picked up $13 million in financing in 2015 alone. He discovered it the hard way: One of his business partners wanted lunch last week and looked for someone to deliver to Expo Park. That's when he hit on Favor, whose founder Ben Doherty said in a news release in November 2014 that "our expansion into Dallas shows that Favor is continuing to thrive in the competitive delivery market and willing to blaze the trail into new cities."

Just not the whole city.

Scott, a member of the Dallas Business Journal's 2016 class of "40 Under 40," hopped on Twitter at 8:36 Sunday morning to post the map, along with a query aimed at Favor's main Twitter account, "Care to explain why you literally won't deliver on one whole side of a freeway in Dallas?" It did not take long before others jumped into the conversation, calling it "appalling" and "outrageous."

Uber caught the same kind of hell a few years ago, when it, too, initially refused to ferry people to and from south of downtown until the city said that isn't going to work.

Scott pointed out that Favor delivers all the way up to Collin County — to Highway 380 in McKinney. It also offers service to parts of the city besieged by high crime and high poverty — Northwest Highway and Harry Hines Boulevard, Vickery Meadow, Forest Lane and Audelia Road.

Shortly before noon Sunday, Favor president and CEO Jag Bath finally responded with a short tweet of his own: "We will be there soon! We continue to expand our zone in Dallas as we grow. Stay tuned!" So many exclamation marks, so little substance.

Care to explain why you literally won't deliver on one whole side of a freeway in Dallas @Favor? pic.twitter.com/wTr9dZsnP6 — Shawn 👨🏾‍💻 (@sdotstx) June 4, 2017

Whoever runs Favor's Twitter account asked Scott to direct-message them, so they could take the conversation off-line. He refused. And so, shortly after 4 p.m. Sunday, the company tweeted a statement, which said:

"Hey Shawn - we periodically expand our zone and look for areas where customers have already downloaded our app. And as we draw our delivery zone maps, we commonly cut them off on major roadways as a way to keep the maps simple. We hear the people of Dallas, and we will continue to expand our zones there and all across Texas soon!"

This is where Favor currently delivers in Dallas.

The response didn't directly address the question about how they landed on I-30 as the cutoff line, but it was better than the howling silence I received after sending Favor's PR folks an email Sunday morning asking for an explainer.

Scott, who was raised in South Dallas across from Lincoln High School, kept pushing back. And by Sunday evening, Favor offered to set up a phone chat with its director of growth. That took place on Monday morning — shortly after Scott met with MenuRunners, the Dallas-based food-delivery app serving small cities throughout Texas, about heading south of downtown.

On Twitter, Scott said that Favor is "actively working" to address its southern Dallas gap and that there would be "more news coming soon."

All this happened in 24 hours. Just because a guy couldn't get something to eat in a part of town that's tired of asking for the same old something people north of 30 take as their God-given right.

"Life is different in Dallas if you live south of that line, in every single aspect," Scott said when we visited Monday morning. "It's literally missing everything, and as long as we let that line be the line, nothing will change."