The guy at the youth hostel didn't wake up from his nap. I left without him. I finally found the dump in question, a kind of farm? There was no one there. I'm sure I saw something that looked like a pinball machine hidden under a sheet in a mobile home, but it was closed.
I got scared when I heard a dog barking, so I left and I'll wait in my car until nightfall to go back. I hope I have enough battery power to keep you updated; I forgot my charger.
Quick video here