First of the question from the OP was what to take not should I take.
Ever read anything on Katrina?
Has a cop ever shot someone, and a riot ensued?
If you have an MSG your weapon may not be for your use. It may be handed off to others in need, moving through.
1) There was plenty of advanced notice for hurricane katrina, everyone knew it was coming and had the opportunity to AVOID it.
2) Cop shooting riots are how big? a couple city blocks? they can also be AVOIDED, and a handgun should be plenty of defense against angry homeys with rocks.
I arrived in the Moore,OK area just as the tornado hit in 2013. Our family was meeting down there to do some hog hunting. It was the biggest, baddest natural disaster I had ever been around. Guess what....I didn't see any looting, raping or killing and not one person was toting an AR around after that tornado went thru.