I heard the exchane on replay, and taped it, and watched it several times.
"Sunny day" describes the best circumstance for the operation of transportation infrastructure. It actually is a relevant variable. And mass evacuations would have been more effective if there was a massive, operatine mass transportation system. But there wasn't.
There were those buses.
Her excuse is a lame one, but I don't believe she was impugning the workings in NOLA, Orlando, or whatever other cities she named. She was blaming the Feds for not making better transportation infrastructure.
I'm glad there's a counterpoint here, actually.