Another relief bus was sent from New York to the scene and was already en route to Boston with the passengers on board, the spokesperson said.
Inter-city buses such as Bolt Bus have been a hit with passengers. But the growing popularity means crowded sidewalks and clogged traffic as buses pick up and drop off.
Business owners are complaining that a stream of buses are crowding Midtown streets scaring away customers and creating a dangerous scenario for pedestrians.
Companies such as Megabus and BoltBus offer rides between New York City and Boston for as low as one dollar, but critics complain they clog city streets in Midtown and Chinatown.