Unless it’s one of those wacky mass hallucinations... yeah.

[ Which, given the likely nature of the town, not that implausible a theory. ]

It's real. [ And everywhere goes unspoken. In words, at least. The expansive hand gesture he gives with his free arm implies it well enough. The other keeps a firm grip on the mostly useless poster tube. ] I'm gonna take a wild guess and say it's not supposed to be?