Actually I was being sarcastic. Telling people to "find a ride" doesn't seem like much of a plan with such a large number of people using/dependent on mass transit.
On the other hand, along with the school buses we see submerged in the water, their are lots and lots of cars that are shown submerged too. Even if half of them are junkers - it would seem that the evac orders were not heeded.
I liked Bill O'Reilly's "moral of the story". He was talking about the "failures" at so many levels - and the moral was "If you depend on the government, you're probably going to be dissapointed".