回复：谢谢BettyCat!

Just phoned Penn Station. Parking for full day is around $10. ( good rate ) There are couple of parking lots at the station, if you want, give them a ring.
Tel: [phone] ( Penn Station central parking )
973-648-0658 ( parking close to Penn Station )
973-623-1023 ( Hilton Garage Parking )
973-648-0658 ( don't know the name, a very nice lady gave me all these numbers. )