Exactly. I believe the city made an economic decision to save their buses. NOLA has NEVER used their buses to help people evacuate when a hurricane approaches. Criminal. It will all come out when the dust settles.
I heard there was damage to the Superdome a while ago, that is why the city always was slow to offer it.
I am guessing the entire evacuation plan wouldn't work, even if it was firing on all cylinders. They had a plan they never expected to implement, and would not function if they had implemented it.