Hundreds of pro-Palestinian protestors packed into Grand Central Terminal during Friday rush hour — partially shutting down the transit hub and leading to more than 200 arrests, according to the NYPD. Metro-North service was shut down at the terminal, with the MTA advising customers to use the 125th St. station, instead. east-bound LIRR service was still running at the Grand Central Madison stop, though the entrances were restricted during the tumult. Subway service on the 4, 5, 6 and 7 lines was severely disrupted, the MTA stated. “I missed my train. I don’t understand why they shut the station down....