It's a road tax camera isn't it? They usually park outside supermarkets on double yellows, so they're moving up!
While we're on the subject of cameras, may I hi-jack your thread slightly Paul, and ask all UK members if they have ever received or know anyone that's ever received, a ticket from a SPECS controlled Average Speed Check?
If so, I would really like to know the operating parameters as there seem to be some significant operational irregularities of the cameras on the many local road works sections on the M27/A27 for example....