As a New Yorker, I don't think you'll have problems unless you're blocking traffic or people are tripping over your tripod. Certainly you don't want people tripping over your tripod in the subway! I've seen tripods on 5th and 42nd Street and no one bothered the photographer.
PS: I had to Photoshop the max out of the picture to straighten the building lines. That's something you will be able to deal with in your camera if you use LF.
I'd use 35mm if I want to be practical. I just think 35mm would be a perfect medium for street. Otherwise, I'd use a weirdest and the most impractical choice I can have, just because I can and it'll be fun - that will be a speed graphic. I might even dress up in a period correct attire doing it....
I've been having fun myself with my Kodak Tourist.