23 V.S.A. § 1752: Parked vehicles

(a) Whenever a motor vehicle is parked on the highways of the town contrary to an ordinance of the town regulating parking so as to interfere with the policing, construction, or maintenance of the highways, including the removal of snow, the police department of the town may cause the motor vehicle to be towed away at the expense of the owner in an amount to be determined by the legislative body of the municipality, provided signs indicating that vehicles may be towed away at the owner’s expense shall be posted conspicuously at or near all areas affected where parking is restricted by ordinance of the town.

(b) The police department and any other enforcement personnel, if authorized by specific action of the local legislative body of a municipality, may impound by use of a so-called “Denver Boot” or other immobilizing device, any vehicle, the owner of which has four or more unpaid parking violations in a calendar year; providing notice that the vehicle in question is subject to impoundment is sent to the offender by first-class mail at least 15 days prior to impoundment.