I've been punching in all addresses in neighbourhoods (there are a few hotspots in my area where the police are using their new F150 stealth trucks to speed trap) not mine into Waze. Photo and redlight camera warnings are lovely......Seems simple enough for those few seconds it takes to drive through the school zone drive like an angel, after that speed up.
I seem to recall that they post signs that you are approaching a speed camera.
Pretty sure Waze also warns you.