Tipi, you rolled out some good entertainment for today.
Some other examples of stealth camping:
1) sleeping in a basball dug out through a hurricane
2) sleeping in ghost town's church or sheriff's office or hunter's cabin particularly and definitely so if No Trespassing Signs are in evidence
3) sleeping in a fully erected tent, hammock, or bivy behind the Interstate truck stop(ear plugs, nose clothes pin, and blindfold recommended)
4) in any bathroom, privy, or outhouse
5) in farm structures(barns, chicken coops, silos, etc), working farm structures definitely a no no
6) in the tunnel to nowhere, in the S. Kiabab Tr tunnel(you'll likely be stomped on by an irate early morning mule train not to mention having to contend with an irate livestock handler)
7) sleeping inside the back of a U-Haul moving van, a fire is a definite no no
8) under a roadway or train bridge
9) under or atop or within 100 ft of any arch in Arches NP or Red River Gorge
10) under a TH kiosk, under a NP or SP main entrance sign
Mining shacks, caves, rock shelters, at the base of waterfalls, on the edge of escarpments, abandoned buildings, etc possibly acceptable.