I doubt it's going to be either in urban areas or without any supervision. In urban areas you already have access to the grid. Also there will be lots of metal

I doubt it's going to be either in urban areas or without any supervision. In urban areas you already have access to the grid. Also there will be lots of metal and concrete, and I imagine some big locks. And it will be close/under either a power plant or a heat exchanger, so it'll be anything but abandoned.