I've not hunted it, but I live a few miles from it and have been in both ends of it, though only on the roads. On the south side you have to park at the boat ramp off 129 at foothills parkway and walk quite a ways up a steep gravel road. There's several homes in there you have to avoid as well.
On the north side there's a small gravel parking lot off 6 mile road, and you have to walk up a poorly maintained 2 track. The terrain is fairly steep as well.
I'm sure there's plenty of pigs in there, but you'll work for them. A friend bear hunts on private property adjacent to it, so they're there as well. There are park property signs periodically through it. The national park owns a easement several hundred yards wide on either side of the parkway.