Thinking more about this society-less world. There would be some remnants of society, I suppose. I don't think there would be an economy, and I am wondering how much merchantilism would exist. I don't know how valuable currency would be. Perhaps trade is more likely. I think it also depends on how scarce resources are. I don't think they would be too scarce since I don't imagine the population being high.
I was also wondering about how "advanced" technology would be. Imagine at the time of the Apocalypse, it was as advanced as it is now in our real world. But it would have been millennia ago. Some knowledge would surely be passed down, but I don't know how readily available electricity would be, so I am not sure about motor vehicles being in use. Analog vehicles would be used though, like bicycles.