Creole/French Creole had always been strong in the gulf region of the states going from heavy to light in dialect and pronounciation. Dix, you live in Alabama, you never visited Baldwin or Mobile counties? You can also hear that accent in Pensacola Florida.
I have about 15 crews in Baldwin, Mobile and Escambia FL Counties that I talk too daily not to mention I have vacationed in Pensacola in the past so I know the FL/AL/MS Gulf Coast region VERY WELL. Accents there are different from Louisiana accents. All of them are born and raised in the region and NONE of them have Cajun/Creole accents.
