I did a quick read of the law just posted. It's no big deal if you're caught carrying a handgun without a permit in Louisiana as long as you're not committing another crime.
The first conviction gets you a fine of not more than $500, up to six months in prison, or both. The second conviction gets you up to five years in prison, with or without hard labor. Third and subsequent convictions get you no more than ten years, with or without hard labor, without possibility of parole, probation, or suspension of sentence.
I don't know what the inside of a Louisiana prison is like, but if it's okay and the food isn't too bad, you could think of a six month sentence and a $500 fine as an inexpensive vacation. I don't know many places that would let you spend six months with food, housing, and recreation for only $500. That's about $84 a month. It's a steal.
Since there's no fine for a second conviction, the five years you would get seems like an even better deal.
Still better is the ten years for each conviction after that. There's no fine for them either, so you're way ahead of the game.
When you do some number crunching, it's not a bad idea to aim for the whole 15 and one-half year vacation package at a total cost of just $500 plus, of course, any money you spend on a lawyer each time. Try to get a public defender and ask him to plead you guilty. It's the most economical way to do it.