I've asked a Comcast employee to help you. You should expect a reply in this thread.
njdude, looks like you got hit hard by the nor'easter too! Let's take care of those hanging wires. Please send me a private message with your full name, residential account number and address for help.
I have a similar issue as original poster. There is an exposed cable in front of my house hanging between two telephone poles. I'm not sure what kind of line it is or if it's Comcast's responsibility. My neighbor tested the cable and it is very low wattage so probably not a power line. We called PG&E and they said it wan't their problem if it's not a power line. Not sure what to do.