This is what the SuperDome plan was and it says no food and water to be provided:
From the City of New Orleans Disaster Preparedness Plan.
The Hurricane Emergency Evacuation Standard Operating Procedure is designed to deal with all case scenarios of an evacuation in response to the approach of a major hurricane towards New Orleans. It is designed to deal with the anticipation of a direct hit from a major hurricane. This includes identifying the city's present population, its projected population, identification of at-risk populations (those living outside levee protection or in storm-surge areas, floodplains, mobile homes, etc.), in order to understand the evacuation requirements. It includes identifying the transportation network, especially the carrying-capacity of proposed evacuation routes and existing or potential traffic bottlenecks or blockages, caused either by traffic congestion or natural occurrences such as rising waters. Identification of sheltering resources and the establishment of shelters and the training of shelter staff is important, as is the provision for food and other necessities to the sheltered. This preparation function is the responsibility of the Office of Emergency Preparedness.
From an evacuee:
"I have to get out of here," said Albert Bryan, 58, shirtless and wearing all his jewelry. On Sunday, he was heading out of Metairie toward Houston in a two-car convoy with his wife, sister, two sons, daughter and three grandchildren. He was stuck in horrific traffic, going nowhere, and "the radio made the Superdome sound pretty good." In they came.
"None of this has been planned," he said. "Not a single elected official has come down here in days to talk to us and tell us anything, not the mayor, not the police chief, nobody. On Sunday the colonel said his main objective was to protect and serve, and that has been a mockery. No one has materialized to do anything. I'm a social worker, and I can tell you, no one thinks about the human aspects."
Another one:
"This is mass chaos," said Sgt. Jason Defess, 27, a National Guard military policeman who had been stationed on a ramp outside the Superdome since Monday. "To tell you the truth, I'd rather be in Iraq," where he was deployed for 14 months, until January. "You got your constant danger, but I had something to protect myself. (And) three meals a day. Communications. A plan. Here, they had no plan."
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