I'm afraid my help is limited -I'm in Canada,but if you are unionized,your union contract would definitely address this. If you are not unionized,calling your Florida State labour department should be of some help. As well there are oodles of websites which may help you out.Perhaps someone here could help:
Or there may be something here:
In our unit,we work a maximum of 16 hours in a row when we're on call - if our call is scheduled after a 15-23 shift. (call then goes from 23-07). We absolutely go home then - unless there's a very unusual circumstance,like a blizzard, preventing the day staff from getting in. Some nurses here on AllNurses,after call have to stay on for all or part of a day shift, but that wouldn't be allowed here -thank goodness!
Our ORs do elective cases every weekend - so we are regularly staffed on weekends (2 7-3s,1 11-7, 2 3-11s),including the same type of call.
The best of luck finding some answers - like you,I wouldn't just take my unit manager's word on it.