1-Having grown up in Florida & seen so many, I've rehearsed in my mind a million times what to do and decided the best option, if in a car in a neighborhood, would be to get into a drain culvert thingy under ground level and hope it doesn't pull me out, as in my nightmares.
2-I don't know if that's really the best thing so please don't consider it advice.
3-In my dreams, I try to find a store or house that has an underground basement and I knock on doors trying to find someone who will let me in and go to the lowest point in the house or store underground.