IMO, based on the story and my understanding of FLORIDA laws, the first permit holder would be guilty of brandishing, possibly assault with a deadly weapon. The second permit holder, having seen another person in mortal danger(being held at gunpoint), should be OK. Morally, I think they are both OK.
This has always been a concern of mine, how do you identify yourself to other permit holders when the lead starts to fly.
You can have peace. Or you can have freedom. Don't ever count on having both at once.
Robert A. Heinlein