“However the mayor did take advantage of the week long warning to move his family out of New Orleans into an up scale condo in Dallas.”
Where did you get the idea that anyone had a week long warning about Katrina?
A week prior to Katrina, what would become a hurricane was Tropical Depression Twelve out in the Atlantic.
As I recall, they had known for at least three days that Katrina was going to be very, very bad.
In that time, using school buses and any Greyhound buses in the area, they could have moved at least three hundred thousand residents in an orderly fashion.
The city officials simply were beyond simple incompetence.
Enough time to move his family. Several days notice.