I got a ticket on my window, being parked in the street. As best I can tell, the officer wrote: 5201 © 2 CVC No cover on plate
Here is a link to California code 5201: http://law.onecle.com/california/vehicle/5201.html
I honestly don’t get what the problem is. I have a plate holder/rim on the rear plate, and no plastic cover. The front plate has a plain holder and a clear plastic cover. Neither obscure the plate, and you can see the registration sticker.
I know you are not a lawyer (unless you really are), but what part of the linked code might I be violating? I can’t even understand their outline system.
Here are pictures of the car: