I live in Cape Coral, Florida (that's southwest Florida). You don't have to worry about gators crossing the road--they do come out on occasion but I've never seen one on the road way and I've been here since 1998. I've dodged a few turtles, but they move so slow they are easy to miss.
Rikstik we passed this poor fella on 41 going west toward Marco Island from Miami last October.
Looks like it came out early and got hit. Around six feet.
Sorry the pic is not properly focused, it was a quick stop just to get the pic, person who took it was a bit thrown by the sight of it.