If you have a NY State pistol license with a carry endorsement you may consume alcoholic beverages in any establishment, unless it is prohibited by the establishment. That goes for OOS HR-218 certified persons. Certain large commercial venues do not permit entry even for off-duty Police & Peace officers of NY state or any other state. Madison Square Garden, Rockefeller Center & a few others have metal detectors & enforce it, although it is waived on a cas-by-case basis. Don't go to the 9-11 memorial, unless you want to walk a few blocks to check your firearm at the PAPD base. The Empire State bldg is also pretty much a no-go either. Not sure about the Chrysler or Pam Am bldgs.