I was riding with a couple of buddies this weekend and one signalled he wanted to pull off at some county or state run nature preseve park to rest. So we pull off and pull up to the gatehouse where you were supposed to pay $5 for parking to get in. When we pulled up the girl in the booth just waved us through. I had never heard of such a thing but according to my friend who has been riding for decades, this is a common practice. Has anyone else heard of this or know how it works?