That sounds like a good idea for lunch today. I think I'll WALK to the one RIGHT UP THE STREET from me.
Sorry to rub it in your face like that. I live in Chicago where there is a White Castle everywhere you look. I am looked at as some kind of freak for liking them (locals don't go) but I don't care. They're good every once in a while.
As far as NJ goes, I don't know. Isn't there a whitecastle.com or something with a built-in locator? It seems all fast food chains have that now.
Good Luck!