I think this is funny, Karma, the best kind, the Instant variety !
I sometimes wonder why cyclists cop for so much abuse and are seen as a target, even when some self righteous prick gets a minor and harmless commupence you see it from his point of view, aww diddums, law of the jungle, if he hadnt stopped he wouldnt have had a minor fall and the resultant damage to his ego.
I take people as I find them, i treat everyone with respect until they do something that doesnt fit with my ideas of how I should be treated, I personally would have had a chuckle at his expense and pointed out that it was exactly why I wasnt using the path then wished him a Merry Christmas and sent him on his way, would have to be a real hardened arse not to see the funny side, hopefully no lasting damage except perhaps a slight tenderness to remind him.