Each of the counties may enact and enforce ordinances regulating the use of vehicles for purposes of human habitation.
Upon each of the counties enacting an ordinance pertaining to the use of vehicles for purposes of human habitation, then so far as that county is concerned, the ordinance shall have full force and effect, and shall supersede section 291C-112 until the ordinance is repealed or otherwise made invalid.
HRS § 291C-113