I think this sign refers to the after-Gustav settling in. Don't worry, things are returning to normal. In most of the area curfews have been lifted, power is back on and life returns to the way it was. That of course is not true of the parishes close to the Gulf of Mexico that took the direct hit --they still have a lot of "digging out" to do post Hurricane Gustav.
It now looks like Hurricane Ike has decided to strike the Texas coast line -- guess he wants some place that has already been knocked down.
Check Hurricane Ike's progress at I Do Not Like Ike