It’s common for some fans to head out a little early when their team is losing a game. Why not duck out early to avoid traffic, large crowds and the looming final defeat? That’s what Cubs fans did Tuesday night during Game 3 of the NLCS when it became clear the defending World Series champions couldn’t make a comeback.

LA’s Metro system wasn’t having it and passive-aggressively called out Cubs fans and the Chicago Metro Authority (CTA), saying CTA was providing “great service” to fans as they left Wrigley field early.

Happy to see our friends and colleagues at the @cta providing great service to all the @Cubs fans leaving the game early! 👍⚾️🚞 — Metro (@metrolosangeles) October 18, 2017

Dodger fans were quick to notice LA Metro’s heater.

Others were confused about whether Metro Los Angeles was actually complimenting CTA, because, public transportation from Dodger Stadium leaves a lot to be desired.

I can't tell if this is a sick burn or if you guys are truly that passionate about public transportation. — Jeremy Hercules (@HerculesJeremy) October 18, 2017

Well ours goes to union station where we then get on a bus and then we get to the stadium. And then… and then … aww heck, let’s drive. 😜 — Jimmy P (@JimPollockPhoto) October 18, 2017

At least ONE of you provides 'great service.' Spoiler alert: not LA. — kcvinweho (@kcvinweho) October 18, 2017

At least the @cta offers quick & efficient transportation to/from their ballparks. Actually, make that across the entire city… — Heather Anna (@hekeleana) October 18, 2017

Some were quick to point out the reputation Dodger fans have for leaving games early.

That’s pretty funny from the land of leaving games early. — Drake (@_drakep3) October 18, 2017

This isn’t the first time that Metro Los Angeles has poked fun at other public transit systems. In 2015 when the Dodgers faced the New York Mets in the postseason, Metro Los Angeles took on New York’s transit system and the Mets police in what was a pretty epic back-and-forth.

The Chicago Transit Authority didn’t respond to Metro Los Angeles, but did step up their game on Twitter by advertising free poster giveaways for CTA riders before the game against the Dodgers. Their effort to entice Cubs fans to take the train to the games, fell flat.

Hey, guys—it’s just a pun on the name of our rail system. We've used this tagline years past & last year they WON THE WORLD SERIES. #FlytheW pic.twitter.com/W81cxe06TB — cta (@cta) October 17, 2017

The Cubs raise a “W” flag after their wins. In this case, the “L” refers to the L train, short for “Elevated” since Chicago trains do not run on the ground. But this play on words wasn’t a win with fans at all, or with Metro Los Angeles.

The Dodgers lead the NLCS against the Cubs 3-0. Game 4 will take place tonight at Wrigley Field.