(1)    Method of perfecting exclusive. Subject to s. 409.311 (4) and except as provided in sub. (2), the method provided in ss. 101.921 to 101.9217 of perfecting and giving notice of security interests subject to ss. 101.921 to 101.9217 is exclusive. Security interests subject to ss. 101.921 to 101.9217 are exempt from the provisions of law that otherwise require or relate to the filing of instruments creating or evidencing security interests.

   (2)   Fixtures excluded. Notwithstanding ss. 101.921 to 101.9217, the method provided in ss. 101.921 to 101.9217 of perfecting and giving notice of security interests does not apply to a manufactured home that is a fixture to real estate or to a manufactured home that the owner intends, upon acquiring, to permanently affix to land that the owner of the manufactured home owns.