I certainly hope this guy can work everything out. I know here in Baton Rouge there isn't anything that could prevent someone from OC. And I can't imagine Marksville having anything on the books that predates the preemption.
Wish I had a name for you. Haven't had a need for one other than for insurance. Hope you find a pro-2A attorney willing to fight the fight.
Marksville can afford to pay the fine for being ignorant of the law.