I'm not sure how much of a "plan" is even possible? Realistically, how do you move every hospital and nursing home and mental hospital patient? What about the violent criminals? As far as just-plain-folks, I think they end up pretty much on their own if they want to leave town - you have a car, or you arrange to ride with someone, or your family drives down and fetches you, or you arrange to take some common carrier. Moving the folks who didn't leave town to the stadium WAS the evacuation plan. It would have worked in a less horrible storm. There are SOME disasters that just can't be planned for or made safe (especially in a city below sea level surrounded by water.)
(no subject)