It doesn't matter how many you're wearing, as long as you take them off when you go ...to/from work.
So stopping to get petrol and having them on makes you an idiot?
Sometimes I think we're way too precious about the uniform...and that means both ways. Some are precious because they're wearing it all the time. Others are precious because they go to inordinate and futile lengths to not be seen wearing any paraphernalia related to aviation. Personally I've just never invested that much energy as to give a stuff either way. Today's the exception I guess.