Dear jimthewiz,
"I agree!"
Well, then, you're one of the "gun-grabbers," I guess. ;-)
But consent doesn't require signatures on documents. It merely requires constructive notification of policy, "You bring your car on our property, you consent to a search. You don't want a search, keep your car off our property."
From the information brought to light, I think it's likely these folks had constructive notice, whether they recall it or not.
sitetest