I'm not sure what happened to the OP after December 18th, but I wanted to see if I can put a little closure on this subject, as it happened to me (I left the court room 2 hours ago).
I'm an imposter here and ride a Honda CBR1000RR, but I found this thread really helpful so I signed up just to respond to it - thank you all for your insight and suggestions!
I was popped for 95 in a 65 and got this same ARS code violation of 85+. At my first court date I plead not guilty. I started reading up on the violation and realized how screwed I was about to be.
Here in AZ you go to a Pre-Trial Conference in order to talk to the County Attorney and see if you can work out a plea bargain (before gathering a jury and bringing in the LEO and spending time on an actual hearing). I decided to go that one alone instead of lawyering-up since I knew if they didn't offer me a plea bargain of non-criminal charges, I could request a jury trial and get a lawyer for that.
I dressed nice and brought my wife to court with me (the North Mesa branch of Maricopa County who busted me) so I could explain to the attorney what happened and ask them to drop the speed to the 85 mph I believe I was actually doing. I was gonna tell them how nice the LEO was in following me to the gas station since that's why I was speeding (I know, speeding doesn't save gas, but I was running up to speed real quick, then coasting down hills).
They already had a plea bargain typed up and printed for me to sign!
I never even had to sing my sad song or anything!
They gave me a violation of exceeding Reasonable and Prudent which is a civil violation instead of criminal (my biggest concern) but it does still carry 3 points on my license. $247 fine. Done.
Thanks to everyone on here who contributed and helped me make a decision!