First two miles seemed a bit traffic heavy and I heard one guy a few cars back blow his horn. He couldn't have been slowed down for more than a few seconds as cars in front of him were waiting for a straight line of sight before passing me. Usually when that happens (rare as it is), that same driver will blow their horn again as they pass me. I was waiting for it, but it didn't happen so I'm guessing he turned off or got over it.