Do Police Officers Generally Target Out Of State License Plates In Arizona?
To answer your question, yes, police officers can check license plates at any time for any reason. Here’s why: Your license plate is in public view, so it is not by itself a search or seizure under the Fourth Amendment. In simpler words, it is not an invasion of privacy.
Many out-of-state license plates costing state millions
https://www.youtube.com/watch?v=LlLC4XvWdSQ