File an official complaint NOW!
Don't wait!
Ask for his public records (find a way to get it)

This cop got road rage on you and abused his authority to give you a harsh and unwarrented ticket. Once you have the complaints and file in hand you will be better prepared to understand your position.

If you don't file a complaint you are just crewing the rest of us over. File a complaint ASAP!

P.S. I get more tickets then I care to admit and I deserved at least one. I've gotten off everytime using http://www.goscottfree.com/ Good luck.