Probably wasn’t totally abandoned, especially by the quality of those patio chairs carried out to there and the intentional camping microwave with that backup battery and light. Probably a dedicated secret spot to someone(s) in need of a secret bong-n-beers spot away from conservative family/neighbors. Probably wiser to invest into that spot and community instead of pillage for booty.
If you can find a merino wool onesie, make sure it has elastane and polyester, otherwise the merino wool will break and rip eventually.