It's possible to track airplanes based on N-Numbers and it's also public info which of those planes belong to law enforcement. I think it would be cool to have an alert and icon for police aircraft airborne within a certain radius based on the aircraft altitude to determine the chances they have visibility of where you are driving and alert of a possible air based speed trap. Iowa is a state does this as well as speed cameras as a money grab. Was tempted to make this myself but would rather have it built in to Waze.