Re: Cvc 22349(a)
Unless you can prove that the officer's Radar measurement of 70mph was incorrect or innaccurate, then simply suggesting that you "believe you were traveling at 65mph according to your speedometer" will not be sufficient.
Also, road conditions are irrelevant when it comes to a 22349 charge. Lastly, I'm not sure how a speed survey (assuming one does exist) will help you in any way. You were charged with exceeding a statutory speed limit and therefore, it is unlikely that the officer will present a survey as part of his case against you.
Just my 2 cent's worth...
I am right 97% of the time... Who cares about the other 4%!