i would take the train if i were you. i am at work now and the roads are terrible! Dh works in the city and he is on the train and he said it's moving, a bit slow, but it's moving and the delays aren't too bad.
I would definitely take the train in and then sub everything so this way you'll be underground while in the city. If you need, you can check the subways you'll need to take from Penn at www.hopstop.com