Welcome to the world of Modified cars, just part and parcel. Yes I know its not right but because 90% of the modded car owners dont do it properly or drive like a T*@t we naturally get branded. Best attitude to take is, dont take the p1ss with the law and be straight with the cop when the pull you.
Before the zed, Ive been locked in carparks for 4/5 hours before whilst the vosa performed a mini MOT on about 80/90 cars. Next day in the paper they reported that only 15 cars were deemed legal and not given a 'corrective order'!
Luckily I was one of the 15!
Moral of the story, dont get daft spaced number plates and hoon around built up areas that will cause more hassel than anything else