Do I have grounds to get my ticket of "failure to yield to an emergency vehicle" dropped?

This morning, after merging onto a highway onramp, I pulled over to the side of the road immediately after seeing flashing police lights behind me while on the onramp. I pulled over on the right shoulder of a busy highway. I stopped for about 5 seconds then made sure to tuck my car closer to the shoulder to give the state patrol officer more room (and safer distance from traffic). I proceeded to travel one foot. The police officer had not gotten out of his car. When the officer approached my window about 20 seconds later he proceeded to handcuff me without giving any reason. I was extremely polite and compliant. I was dressed professionally and drive a new car with in-state GA license plates. He claims that I could have been trying to escape the scene.