I just talked to the aid on the phone and she said that it turns out they didn't do much of anything because DEP had already come up with the new rule(s) but just hadn't gotten the word out fully yet until now... I guess that was my part in this whole thing (nudging the issue along).
I am going to get the new rule from the Senator's office as soon as they get it and will pass it along here for people to have with them when they call ahead (a good idea) or show up to camp.
I hope that Florida can be an example that others use to get hanging approved in other state parks. Let's do our best!