Excuse my frankness, but you are really getting absurd.
Now you are defending some wannabe license plate vigilantes who physically assaulted people sitting silently and peacefully in a parking lot,
Since you are being so incompetent, let me explain the lesser point about the plate...
License plates are used to identify a vehicle while being operated on public roads (AZ implies "moving"). Plates are not intended to be used to identify the driver after the driver leaves the vehicle and pursues their lawful business.
Defending thugs. That's you.