They may have known he was coming but he may not have known they knew. Any number of ways they got the word that he was in the vicinity. I see a man who is just on a day off from work going out to his favorite chip shop. He certainly didn't seem anything but happy. A bit tired but still happy and enjoying being there, eating his grub and visiting his nephew. I doubt I would have made much effort under those circumstances either. At least he seemed completely sober and not a fag in sight. Oh, and he didn't have his readers around his neck for a change either.