Ugh, black ice is scary. Do you guys ride with studded tires at all during the Winter? Eventually I would like a cross bike so that I could ride year-round...I would definitely need studs from Dec. through...March? We've had an easy early Spring, but most years we have patchy ice right about now, especially in the AM, like you are experiencing.
So sorry for your friend. How long will this have him down? Does this mean wheelchair for a while?