Laughing Out Loud, Just Kidding! He used a local San Francisco news item as an excuse to make a poo-poo ca-ca joke about teh ghey (I think? Maybe? I know "San Francisco" = "tee-hee, homobuttseks" in Meekinspeak, so that's my best guess.
Eat a hot bag of dicks, Will Rogers! This is how topical humor is done!