The New York Times can be purchased at any book store, most major grocery stores, most airport newspaper stands, every major city carry's it and some not so major ones.
I suggest getting extra copies for those ones that might have missed out. Just FYI the Sunday national edition runs around 4.75 but it is well worth it.
Also get your copy early in the AM because it has been my experience that by noon/mid-afternoon they are all gone.