That's a BS answer from the police. I live on a private road and when we called the police about waking up and finding an abandoned car in our diveway the police came out, ran the plates and determined that it belonged to someone that they were looking for over a DUI (I think they'd tried to pull him over the night before and he evaded them), and they arranged to have it towed.

The person who suggested contacting WMUR probably has the right idea.