New York does not require that you tell the officer that you have a pistol on you. I have yet to be pulled over while carrying but if I do I would hand him my permit with my license and let him know where it is. If he's a good cop he will appreciate that. If he's a jerk he will remove the pistol from the holster, clear it, and put it in the trunk. If you plan on carrying in this screwy state you need to do a ton of reading on the laws.