If a biker commits some crime on a forecourt, would these same people be completely happy for a conviction to be made purely on the type of helmet and protective gear the biker was wearing? No chance of an unsound conviction?
Combinations of particular clothes and motorcycles in the same area aren't very common hence why they have been used to identify motorcyclists for convictions in the past.
In response to the whole gist of the thread: If you don't like having to take your lid off, just go and use a self-service pump? There is bound to be one near you?