As used in the Motor Vehicle Code:
A. "unclaimed vehicle or motor vehicle" means a vehicle or motor vehicle that has been placed in an impound lot by a law enforcement agency or removed to any storage lot by a property owner, and to which no owner or lienholder of record has asserted a valid claim; and
B. "utility trailer" means any trailer, semitrailer or pole trailer, but does not include freight trailers, manufactured homes, trailers of less than one-ton carrying capacity used to transport animals or fertilizer trailers of less than three thousand five hundred pounds empty weight.