>(Do note that people can't just "not pull over" because they know there are no penalties involved; they would still be considered police, and "not complying with a police stop" would, as always, be a real crime with real penalties; if you run from the drone, it would summon actual cars to chase you!)

Or perhaps people will not be able to just "not pull over" because the police drones will be given the power to remotely command their car to stop. Heck, why even have the drones? Just require that the car monitor speeding infractions and report them for fines. Serious or repeat offenders can have their throttles locked out to the speed limit of the current road.