You need to go over to the forum on spyderco.com and read all the stories of guys in NYC having their knives confiscated and even being arrested for having them. Put your knife down in your pocket until you get where you're going in NYC.
Some other time we can debate the logic the NYPD is using to determine who to hassle about knives. Hey, there's a guy who has a knife! It is obviously clipped in plain sight so he isn't trying to hide it, but let's arrest him anyway. Who cares if 10 muggers or rapists with "real" concealed weapons walk past while we are boosting our arrest rate by busting the honest guy?
Ooops, sorry. Living in the South, I just can't understand some of the shenanigans that law enforcement gets up to in the North.