Seems like the pigs will prefer agricultural areas for the best forage. Most of the state land down there is marginal for that. They will move around alot. I would think the best chance is to knock on doors and talke with landowners as to who has seen them regularly. Just because one party is refused land access doesnt mean someone else will also be refuses. Dress appropriatly, be pleasant and not mouthy, and appreciative of thier time, even if turned down. Neighbors talk. It seems like the pigs are very much a target of opportunity there. Perhaps access permission to hunt ground hogs would be easier to acces,, then you can scout?