The provisions of Section 1 [30-38-1 N.M. Stat. Ann.] of this act shall only be enforced in those political subdivisions that have adopted by ordinance the provisions of section 1 of this act. Any ordinance that has been adopted by a political subdivision that is in conflict with the provisions of Section 1 of this act shall be void. In the event a county adopts by ordinance the provisions of Section 1 of this act, those provisions shall not be enforceable by the county within the territorial boundaries of any incorporated municipality located in the county.