Yes, law enforcement can place an impound upon your vehicle as a product of an investigation that it is conducting where a crime occurred even though there are no actual charges filed against you at this time. Many times belongings of people who are not suspects in a crime are held by law enforcement pending the completion of their investigation in the event that the article impounded may be evidence.If you want your vehicle back sooner rather than later, I would contact law enforcement at least once a week as to the status of getting the car back from impound.