My question involves a speeding ticket from the State of: Washington.

I was traveling southbound on a state highway, the officer in question was traveling north at the point he measured my speed. He then did a U-Turn and pulled me over. My ticket is marked as SMD, which I'm pretty sure means Radar.

To my knowledge, Radar requires a cop to be stationary; it can't be accurately used from a moving car, much less one traveling in the opposite direction. Am I right? Is this enough to have my ticket dismissed?