Police departments all over the US are pressuring Google to disable the feature in their popular mobile app Waze that alerts drivers of nearby police locations. They say it puts officers in danger. Due to the recent rise in attacks on police, one can certainly see why. Google purchased Waze in 1996, and provides drivers with real time information on construction, traffic accidents, and delays. More discussion on the topic can be found here: Sheriffs Want Popular Police-Tracking App Disabled
Waze is integrated into Uber and Lyft driver systems as well. Time will tell if they bow to the pressure. but so far, Google has not removed the feature.