My question involves a traffic ticket from the state of: Washington

I got a ticket for 65 in a 60. Officer alleges that he had a reading of 73 in a 60. I used the discovery letter on this website to file for discovery. Here is what the prosecutor mailed to me. I don't see anything promising but I'm not expert on these things. He says he had a reading at a distance on 924 feet. Seems like a long range reading ~1/5 of a mile in medium traffic...

Can anybody help?