Yes these small towns are devastated! Everyone seems to be focused on houston at the moment.
You may not be able to get there due to flooded roads etc. if your confident the bus will make it, don't take no for an answer. The police/military will assist you through.
They tried to turn us around once due to the flooding (over the bottom of the truck doors) and the fertilizer plant was blowing up. After we said if you turn us around we will get around you there tune changed to ok let us help you help them