If you can afford one get a lawyer. Even though you SHOULD be golden, a lawyer knows all the right things to say. Basically, if he didn't take anything, or administer a drug test, he has nothing to accuse you of. If you were driving poorly, then he would site you with reckless, if you were speeding, then speeding. If he saw you smoking than thats a different story. However (at least in my state) it needs to weigh I think a gram or more to be possession. Otherwise its paraphenalia. The burden of proof is on the state, but you have to plead innocent for him to PROVE that you did it. Best of luck to you.