§12A-9-310.

§12A-9-310.
   
   When a person in the ordinary course of his business furnishes
   services or materials with respect to goods subject to a security
   interest, a lien upon goods in the possession of such person given by
   statute or rule of law for such materials or services takes priority
   over a perfected security interest unless the lien is statutory and
   the statute expressly provides otherwise.