Nothing yet, but a few of the guys from my local bike club pissed off an ex-convict on the road, who then proceeded to pull a gun on them from his car and threaten to shoot them. Good thing they kept their wits, pulled over, and reported his plate to the cops. He was arrested for it. Here's the NBC article
Driver Points Gun at Bicyclists in Bucks County Road Rage Incident | NBC 10 Philadelphia