the state pre-emption says,
The municipal governments shall enact no law, ordinance or regulation prohibiting, restricting or licensing the ownership, transfer, possession or transportation of firearms or components of firearms or ammunition except that the discharge of a firearm may be regulated; provided any law, ordinance or regulation incorporates the justification defenses as found in [Tit. 11, §§ 461-471]
. Nothing contained herein shall be construed to invalidate municipal ordinances existing before July 4, 1985, and any ordinance enacted after July 4, 1985, is hereby repealed. , does that mean since they made the law in 1980 that its valid?