Just as an update, we went a couple of weeks ago and there were no signs (or at least, I didn't see any) forbidding carry. And you also didn't need to pass through any metal detectors. I think if "concealed means concealed" there will be no problems with it. It also was fun for the kids. Lots of D&D nerds dressed up in costume, but as a whole, we enjoyed it. It would take probably several trips back over a few weeks to really get the whole "story line" experience. It literally is LARPing.
The restaurant on site was really good. Service was a little slow, but all restaurants are having trouble finding workers right now. The food was awesome. I had the steak with garlic mashed potatoes and mixed root vegetables.
Right next door is a place called "Grid" which is like a 2 story indoor go kart track. The track has a lot of bridges and ramps. Looks really cool, and we might have to go do that one weekend as well.