Sure, as long as police agree to abide by the Second Amendment.
Last I heard,though, NYPD was enforcing NYC's gun laws.
Part of the purpose of the “Stop, Question and Frisk” policy was to get guns off the streets - I.e., enforce the NY gun laws. Now that cops are afraid of getting sued if they stop a member of a “protected” group, enforcement of the gun laws will be more spotty.
So - more people carrying, more shootings. All to the good. Let them kill each other.