Meet me at the parking entrance on East 53rd street on the same block as the post office.  I am directly east of the Courtyard Marriot.  The entrence is right at the south west corner of the Rooftop Park. Best way to get there is to take the road that heads northeast (about a block west of you) 14 blocks then go west a half block on East 53rd and that's where the parking entrance is.