Waze would inform you, (assuming enough nearby users) but not in any special way. You'd just see a cop ahead. By the way, if you aren't using Waze on trips of

Waze would inform you, (assuming enough nearby users) but not in any special way. You'd just see a cop ahead. By the way, if you aren't using Waze on trips of any significant length, I highly recommend it. It's good for more than just cop-spotting. You'll also know when a semi loses a tire in the road.