If I remember correctly that day your speedometer was acting up maybe a fuse problem or something, and you couldnt of accurately known what you were doing and it was an honest mechanical/electrical mistake. Or you and your wife / girlfriend / dog / cat / kids were fighting in the truck / car / toyhauler / suv and you didnt realise you had been going faster than you should. You probably wont even make it to a judge, but in any case its better to go to court vs just paying and not going. If your lucky the officer wont show up.
Holy Crap! I got a 70 in a 50..work zone on a nonwork day. Stupid me. Officer reduced it on the spot to 59 so I could keep my license. Cost me around 450 clams.