Expect long lines in Mobile, P'cola same way. NO gas or gas cans to be had anywhere in MS.
The only available route from Baton Rouge to Mobile was to hit Hwy 98. Watch for debris and downed lines (as of 2 am this morning). I-10 is closed (from LA at the I-10/12 split). I-10 is closed at the MS state line from Mobile.
Take your own gas, gun and ammo.