Personally I think this is pretty awesome. Clearly the snakes aren't dangerous, and he wasn't riding dangerously or anything. I tweeted about it and got a couple of responses -- a bunch of other people saw him, one person saw a guy on 14th with snakes on his arms a few months ago, and Miss Caterina actually stopped to talk to him: the snakes (there were actually two) are named Pebbles and Bam Bam, from the Flintstones, which is pretty funny, and he said they like bike rides. Who doesn't? I wonder if he shops at Mr. Larry's for snake food.
I wish I had enough time to get a picture, but you get the idea. Pretty cool.