Michigan Compiled Laws, Chapter 440. Uniform Commercial Code § 440.9333

Sec. 9333. (1) As used in this section, “possessory lien” means an interest, other than a security interest or an agricultural lien, that meets all of the following:

(2) A possessory lien on goods has priority over a security interest in the goods unless the lien is created by a statute that expressly provides otherwise.