You have to look damn close, but Big Ed's reflection above the trash barrel between the pumps doesn't match what he's doing and he notices it. The reflection is drinking from the cup after he's finished and suddenly the reflection's cup jumps to the table. This suggests that loop of tape Sarah Palmer is watching…

Have we reached the point that even geek reviewers don't know or care
that this is also a Star Trek TOS homage of an episode decades older
than Ethan Hawke?