It is impossible to advise you whether the police could legally search the vehicle with only the limited facts that you provided. Police need less basis to search an automobile then they do a person's home. Moreover, if an arrest was being made and the car was being impounded incident to the arrest, then an inventory search is permitted. The drug dog, believe it or not, is not considered a search under Michigan law. Since they found a roach on the seat, that is contraband and could be basis for a criminal charge/arrest, leading to a search incident to the arrest. If the vehicle is only impounded because of the arrest and is not evidence, it should be recoverable right away. If evidence, it depends upon the manner it is being used to determine whether the police can keep it indefinitely or not. The owner(s) need to petition the court for the return of the car. Finally, since both people are owners and were present in the car, both could be charged if drugs were found.
Answered on Aug 14th, 2012 at 1:28 PM