[She's barely touched his elbow before he's reaching behind him to just sort of pull her along to keep up with his brisk pace as he exits the door and books it down the hall opposite of where the guard came through. He eventually lets her run under her own power, but there's running. So much running.]

So funny story, I'm not entirely sure if there's an exit... or if there's supposed to be one. If this is a puzzle, it's deeply complicated.