[Steve Carlton]

Sounds like you were dead to rights. I would think your best chance would be to contest the correct usage of the radar or hope the cop doesn't show up (or respond to the Trial by Written Declaration). There's lots of stuff you can do to make the police jump through hoops to comply with your discovery requests, including obtaining a copy of the officer's notes, usually on the back of the ticket. You've got a fairly good chance the police will fail to comply and you can have the ticket dismissed. That book I suggested above gives you the complete rundown.