Police protests about how Waze makes them targets see highly disingenuous to me. It seems much more likely that the protests have to do with concerns that traffic ticketing revenue will drop if people know there are cops ahead and slow down. Which, of course, is in theory what the police should want (slower traffic, greater safety, the whole reason they give speeding tickets in the first place), but they are perversely incented to maintain the metric of tickets written, as well as the revenue to cities and states which follow.
In Defense of Waze, Which Doesn’t Put Police in Danger
The traffic app does alert its users when a squad car is ahead–and many in law enforcement want that to end, so they’re pressuring Google for a change.
Ahh… Your first mistake is assuming that speed limits were implemented for safety.
Obviously we must ban anything which could be "misused by those with criminal intent." Which leaves us with… nothing.