My friend "showed" the plates were not his (he couldn't prove the car wasn't stolen because it wasn't -- they only copied his plate) but they kept sending him tickets because apparently it only counts for one ticket. They wanted him to go through a laborious process every time. I think he finally just stopped challenging them because it took too much time, and probably can't go to that state again unless he wants his car seized.

Sounds like the issue here is that the police aren't doing their job!