I put a new thread up earlier that has all the roads that are now open and the ones that are closed. Some of the highways have curfews. This is a direct site for the Florida Highway of Transportation. You should check it out before you leave.
http://eoconline.org/welcome.nsf
Click on Road Status and then to the right on the next screen click on road status again. It will give you a complete list of all highways, bridges, etc that are closed and or opened with restrictions.