Yes.. My kids had their 30 ft and their F150 over the week there and the Father in Law with their 5th wheel and Ram 3500 next door.. Park trucks in front of Trailers. We even had enough room to park our Ram 1500 behind our kids TT when we visited. Really nice campground.
Yes! That’s what we were in. It was our favorite state park after all our travels. We hoped to return but never made it. Here’s a link: https://thetumblelees.me/2015/02/28/florida-caverns-state-park-223-272015/
Check the site length on the state park website on the length. There were some sites that it would be tight to get into but there are sites that would be no trouble to get into.
We were in a 20-foot camper van and there was plenty of room to have 30 foot trailer. But you may want to call the Park office and ask. Cuz I don't know about putting the pickup in there