I cannot remember when it was, probably late sixties, early seventies, I drove my wife and two young daughters to Birmingham from Leicester. It was in the days when it was fashionable to have a sticker of the place where you lived on the rear of your car. We had a Leicester sticker. At that time, in Leicester we did not have meters, although I was used to them, because I was driving all over the country.
We parked in Snow Hill, paid for two hours, and came back around three hours later, meter was on either yellow or red. The traffic warden was standing by our car, and as we approached it I told my wife, we are going to get a fine for being over the time limit.
The traffic warden was waiting for us, and said that he had not given us a ticket as we were visitors to Birmingham (He had noticed the sticker). I tried to look all innocent, and said that we were not used to meters, "We do not have them in Leicester". The warden then proceeded to give me a long talk, and demonstration, of how a meter worked!
Lovely man (Was it you milomilo?). Never booked me, but all the way back to Leicester, even our two daughters were in fits of laughter.
Eddie