Oh, I thought that one-bucket-washing was still okay?
Then again, I no longer live in suburbia, so don't care...we may have some sort of restrictions, but since we're on rainwater, we can thumb our noses at it all. :-)

PS- I used one of those carwashes once. Much terrified laughing while trying to control the hose and brush and not drown in foam, indeed.
I was so tempted to try the deodoriser though, but it would probably have resulted in an industrial strength hideously-cloying fragrance settling into the car for the next year...