Ridership on the bus had dwindled in the last 10 to 12 years. So few ticket holders made reservations that he arranged for a car service, not a bus, to take them to Manhattan. Last Wednesday, for example, only four people had made reservations.
http://cityroom.blogs.nytimes.com/2013/10/07/in-a-safer-brooklyn-the-end-nears-for-an-outbound-bus/