But where I live, there very few places in ID/WY/MT where I camp, where bears are not a common problem at times. And sometimes, a big problem; thus they close the sites.
There are a few things that will stop them. But first, keep a clean camp.
Food must be stored in either the fridge, or if available a bear food locker, or inside a hard sided vehicle such as my truck. And that includes dog food!
So basically, when not at the camp, there is no food inside the trailer other than in the fridge, same at night.
Don't throw your spare rib bones around by the campfire, which I see all too often.
And a few years ago, I used to camp in a tent in those same areas, to me a popup is like a tank compared to a 4-man tent.
But if that does not work and a bear starts to tear into my trailer at 3AM, he will come face-to-face with a 12 gauge, loaded with 600 grain Brenneke bear slugs; they do stop grizzlies. Outside an enclosed trailer, bear spray does work.
But prefer just to see them foraging for berries off in the distance.
(And your panhandle area of FL has quite a few black bears.)