"Amtrak Only": The first eastbound Keystone Service train of the weekend from Harrisburg, PA to New York Penn Station begins to depart Princeton Junction after making a station stop. Upon arrival, crew members loudly announced "Amtrak Only" to keep the many awaiting NJ Transit passengers from boarding. On the hind end is AMTK 602 (ACS-64). Amtrak has been taking efforts replace aging equipment, including the Metroliner Cab Cars, for a few years, but they soldier on in 2024!