ALL of NYC is as knife-unfriendly as you can get.

Do not carry any blade that can remotely be considered as one-hand-opening or NYPD will arrest you if they see it. This includes practically all Spydercos. I've heard of cases where a cop spent several minutes working on a Swiss Army Knife to see if he could open it one handed, and making an arrest when he was finally successful. There was another case where a man was charged and had to go to court to defend carrying a multitool. People have spent tens of thousands of dollars defending these charges.