9/7/2019 - Fort Stevens SP Campground, Warrenton, Oregon. Unmarked sedan parked near bathrooms/showers. Took shower, officer was checking many people for camping pass. I was trying to take off and one shower shoe fell out for first time, officer asked for my pass and ID. Told him I had OAP, proceeded to show him ID, but he wanted to see OAP instead and said that's good enough since it says camping on reverse.