I'd suggest looking online if you know what path you are taking. Here in Tampa, the Veterans and Selmon Expressways were both converted to ORT a couple of years ago. I know many segments of the Turnpike and MDX are, but not all.
For instance, I found this map on the Florida Turnpike's web site: http://www.floridasturnpike.com/all-...%20map_web.pdf
If you have a SunPass, it works on all toll roads in FL. SunPass and EPass roads. Now they even know when I have my trailer attached.
I need to get one for my motorhome, though. Oops.