Auger, Dave was simply stating the obivous with detecting at this sight. I know him and believe me, he really is a sheriff's deputy, one of the nicest guys you'd ever meet too.
No harm no foul, hunt were you like but know all the rules and regulations regarding the area you are in. I would absolutely love to hunt that area myself, shoot, maybe we all can get together and see if we can approach those in control and seek permission to hunt in an area. How does that sound?
When it comes down to it, I will caution towrds a law enforcement officer over a person"who knows the area" unless of course you are the owner of said area!

then you trump the officer, lol