Hey Stephen just had an idea!!! You know I'm old and the wheels don't turn as fast as they used too!! Anyway there is a Sonic at the Oxford exit. It has a huge an very clean restroom that you enter from the outside. Just take a blow up mattress and lock the door. You then have all you ask for!! Go in right before they close and they will just think it's already been locked up for the night!! Best I can do for you or stay with me and drive 400 miles every morning!!