No cover or garage in Florida so it's gotten wet before clearly..
Have you ever been through a hurricane? It's really no big deal - especially a category one. Just try not to park near any telephone poles or trees and you'll be fine with debris. Don't park in low areas - which I doubt there are many as it's Florida...
No prep needed...just be smart about it. If I hear in a few days that a 100 lb branch fell on your car I'll know you weren't...
But good luck and don't worry about it - I wouldn't.