A few times when waiting for my train at Stamford I have seen the local pull in and saw someone sit there through all of the last stop announcements, I then look for a conductor to tell him that there is still a passenger on his train, once that train started to pull out of the station before I was able to wave one down. I also once saw an Amtrak train come to a stop at Noroton Heights and through off a Metro North passenger who thought he was getting on a Metro North train when he boarded at Stamford.
Some people complain about the traffic on I95, If you have a problem with traffic and the rails go where you are going, TAKE THE TRAIN!!!