They may not ban you if you give them a good case as to why you need to keep your transport, I know people with 15 points and still going (but slowly).
I would bet you will get off with this one, they normally stop you further down the road with a mobile speed camera.
You could always get an alibi and say that it must have been someone with a false number plate, your honour as I was in Afganistan at the time.
[Edited on 19-11-2004 by Desmo748]