Some tourists were stuck down there. They couldn't get out in time. I remember Foxnews stating that several tourists came to them that couldn't speak English very well and asked them if they were there to shoot a movie. They had no idea a hurricane was on the way and it was only hours before Katrina hit.
Duh! That would be a tourist trapped there that couldn't get out.
If you didn't have a ticket to leave before the storm, you couldn't get a flight out.