This story hit the national news evening broadcasts tonight. It sounds like Google is engaged in defending the safety features of the app, but probably worth monitoring the situation.
One of several articles I found in just a few seconds of searching:
www.google.com
One of several articles I found in just a few seconds of searching:

NYPD To Google: Stop Revealing Location Of DWI Checkpoints
The NYPD has sent a cease and desist letter to Google, demanding that it remove alerts about DWI checkpoints on the Waze driving app.