去woodbury在上车地点可以买票吗

我看网站上写停靠地点
Monday-Friday Only:
Gray Line Visitors Center (777 8th Avenue): 8:59am, 9:29am, 10:44am
Rockefeller Plaza at 49th Street: 8:30am, 9:00am, 10:20am
53rd Street and 7th Avenue: 8:45am, 9:15am, 10:30am
Waldorf Astoria at 49th Street & Lexington Avenue: 8:30am, 9:00am, 10:15am

这几个地点可以现场买票上车吗？还是需要到汽车总站那里买票？