Hey Buddy,
sorry to hear about that. surly there are crimes that need delt with rather than hasseling kids in their cars! neway.
if your over the line and its not red your sweet but there is no proof of that so you can also say that.
the prosecution have to prove beyond a reasonable doubt that you are at completly in the wrong. If you can prove doubt with the discrepancies in the completion of the ticket you should be able to show that there is doubt in what the officer has charged you with.
you should take it to court. the police will crack the shits and alot of the time they cant even be bothered to have to take half a day off work to go and sit in a courtroom so they just give in and drop the charges. but just sit down and think about but you should be sweet if you go to court.
neway mate all the best with it.
