ORIGINAL: cj_rumley
Yes. An example in my general vicinity (SoCal) is PVMAC, resident club at the publicly owned Prado Dam Rec Area near Chino. As it is peripheral to a megalopolis where flying sites are very scarce, there may be some pressure from the owning agency to accommodate non-members. Ask Silent-AV8R about it, he is closer to it than I am.
PVMAC is closed to non-members Monday through Friday (except for special events). On weekends any current AMA member can fly there by paying a small fee. I am not certain what the genesis of that plan was, but I have never sensed that the County (it is in a County Park) has ever made a big deal of it. I think it was something that the club decided to do from the get go. It has worked pretty well for a number of years.