Opossums do thrive in the New Orleans area! Especially uptown. I like to call the natures homeless people. They eat just about anything and if there is a nice warm area they will hang around sometimes even in the day.
I just removed a rather large opossum from a store new years eve - they do not know how it got in there and would rather I did not share who or where it was, just know it happens to the best places.