1) Gas stations along Evacuation Routes are not being required (new construction) to have larger gasoline/diesel storage capacity.
Just remembered another, in the next evacuation they'll preposition tanker trucks at rest-stops and several other spots as mobile gas stations.
Last summer Houston had a big "Run from water, hide from wind!" promotion to teach people when to evacuate and when to stay. I haven't seen anything like that this year but it's early.
-Blast