Not sure if your willing to risk it but i
got a wreckless driving in hampton about a year ago
85 in a 30, i went to a lawyer and talked to him and decided not to go that route.
i went and had my car put on a speedometer calibrater and found that my needle was 15 off i then took my car to a mechanic and had it fixed, i then took an 8 hour defensive driving class and went to court with my driving record (wich was clean)
the judge dropped the whole ticket to defective equipment and i paid 30 bucks in court fines.
In the end there was nothing wrong with my needle i just paid the guy to write it.
and i paid the mechanic to write out a reciept saying he fixed it.