I recently received a ticket on two lane highway on which the posted speed limit is 55mph. I decided to fight the ticket based on the fact that I live in a state with Prima facie or "presumed" limits. In my research I was able to speak directly with the designer of the road and found that the posted limit was given based strictly on political reasons and that the road was designed for 70 mph. In addition to this, the code I'm charged with clearly states that the limit must be based on a traffic engineering and safety study which was never conducted on this road. My question to you guys is should I file an order of dismissal or do I need to wait until the trial date to present my case?