What other M3 owner would that be Martyn?
I was never given paperwork when I was pulled over for having a quiet amble home one evening with a fellow M3 owner who shall remain "nameless"
In fairness I had 2 fairly good coppers, they could have been a lot worse than they were with me and the nameless one. They took all the details of the cars and did all the checks with us there, but gave us no paperwork.
It's unfortunate that you got a pair of tools that pulled you mate.
As mentioned before, if you feel they are wrong in their judgement then contest it.