Are you in Michigan.? if so, what county? Have you ever been charged in Juvenile court before? Was the car titled in your name, was it recently purchased, was the vicodin in plain sight? I have many questions that need answers before I can formulate an answer. Generally, here in Michigan at OWI checkpoints, they can search and confiscate items in "plain sight" or within reach of the driver,but cannot search (in trunk etc) without a warrant. So if you weren't drinking, had nothing in plain sight, you could defend on a warrtless search and attempt to exclude the evidence. If however, the facts negate that defense and the vicodin gets into evidence, there is a Consent Calendar available for first offenders. Under this, after a probationary period, your receord is expunged and everything is back as it was, provided you are not charged again on different matter. You need a lawyer.