Then you need to go to court
and fight the ticket. First, you would need to prove that your GPS was an accurate measure of your speed such that it was as accurate or more accurate than his certified calibrated speedometer (or radar) If he wrote you based upon pacing you with his speedometer, then you would ask for the prosecution to produce the records certifying his speedometer. If it was radar, then you would have to ask for documentation on the certification of the radar and his certification and testing measures. You would also have to write to the GPS company and ask for this certification on your GPS as well to submit into evidence in your defense. You would likely do best hiring an attorney to represent you in fighting this ticket.
As far as being rude, this is a complaint
you would make to the department's internal affairs division.
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