[What you need to know to start the day: Get New York Today in your inbox.]

Google’s navigation app Waze is known for providing real-time, user-submitted reports that advise drivers about potential thorns in their roadsides.

But one feature has Waze in conflict with law enforcement officials across the country: how the app marks the location of police officers on the roads ahead or stationed at drunken-driving checkpoints.

Over the weekend, the New York Police Department, the largest force in the nation, joined the fray, sending a letter to Google demanding that the tech giant pull that feature from Waze.

In the letter, which was first reported on by Streetsblog, the Police Department said that allowing people to share the locations of sobriety checkpoints impeded its ability to keep streets safe.