well i havn't updated this in a while. so I ended up pleading not guilty with a trial by declaration. i didn't argue the speed the officer said i was going, just stated the facts and showed receipts with the printout from the dealer saying the cluster was bad and it was repaired and I had my cruise set at 55 ...etc. the ticket amount was lowered to $170, with option of traffic school. The judge was super nice. $170 from the original $429 is pretty darn good I think. The trial by declaration was definitley worth doing.