That's not a bad idea. I know the law varies in different places, as well as enforcement. I've lived in a few different places & never have I seen what I've seen here in Los Angeles. Just as an example Ive been heading to work in the wee hours of the morning clipping along at about 80mph on the highway & had cops pass me. First off, everyone drives like a bat out of hell, but this just scared the hell out of me.
& it has happened on more than one occasion. Being from the NW, if you are driving 6 mph over the speed limit can easily get you a ticket. But my point being that I doubt anyone here would ticket you for the plates, even "if" they notice unless you give them a reason to get pissy.