This came in today's mail and answers all the questions. This happened weekend before last on the way home from getting a haircut. By the time I realized I was screwing up, it was too late. I was wondering at the time how tight the tolerances were. They're pretty tight. Oh well. I think I should have at least got a discount for using my turn indicators.
Lilburn's online payment system works pretty well.
Nothing more to say on this one. :(