Times square... park it right in the middle.

j/p
42nd street and Broadway (I think) (near the subway entrance) reeeeeeeeeealy early in the morning... 2:30ish.. 3:30ish.. 4:00ish (on a weekday) not a lot of traffic and the lights are still on.
or maybe see if an open roof parking garage would let you up there to take pics.