How far in front of a storefront must I be in NYC to carry a picket sign? Need answer fast-ish.

I would like to carry a picket sign in front of a place of business in NYC. It would not be a “demonstration” of many people; it would be just me. Any quick answers as to how far I need stand, if there is a distance requirement at all, or places where I could find out in the bowels of bureaucracy?

I need answer fast-ish.

This post is not a request for legal advice.

Start here —> http://www.nyc.gov/html/law/html/about/laws.shtml