To say there was no plan is an over-statement.
The argument as to the government's responsibility to provide transporation is not absolute.
No, it is not. There was no plan to get those without transportation out. Even tourists got trapped.
The argument as to the government's responsibility to provide transporation is not absolute.
Government bears a responsibility to make sure that everyone in a city like New Orleans can get out if there is a disaster. The city failed in that regard. Grossly.