Its quite common for me to be stopped late at night in any of the cars and there is alwaysa some lame reason, someone reported a clack car driving erratically etc.
I have no problem being stopped as a spot check but get annoyed by all the games.
I was once stopped at 3am in Barrow driving home from the docks in full uniform. The BIB said its a funny time to be working, I replied "well you are" Got an official letter from the chief constable for that one.
I was also told to watch my back once after a romantic interlude with a coppers ex gorlfriend. Got three points and a fine the next week for shooting a red light, I must have gone temporarily colour blind.
The numberplate issue is always going to be an easy in for them so I would just get it changed.
My tug never gets pulled.