The buses appear to be school buses, not part of the RTA system.
They obviously should have been made available, but when dissing your opponent, being factual is important.
Another good question to ask mr naggin.
Even if they are school buses he could have commandeered them for the busing of New Orleans' residents out of the town before Katrina hit.
Good point about the municpal fleet, though. I'll bet they are underwater too!
Poor planning on the part of the city of New Orleans.