My husband once parked his motor bike on Bond St, illegaly, I admit, between a Rolls and a Merc, also illegal. When he returned a few minutes later, he had a ticket, but the two posh cars didn't, Odd, isn't it?. Must have been invisible.He appealed, on those grounds, and the ticket got withdrawn. Also got his ticket cancelled for parking on the open area outside the National Theatre. Lynne