Yes, contact them. Although you should probably call them. They will tell you on the phone what you should do (lots of times they have you write a letter). Don't ask if you are going to be interviewed in Nov, just say that you are from "insert far away place here" and that you will be in the area on whichever day and that if they are going to interview would it be okay to do it then. If anything, it doesn't hurt to ask and plenty people have done it.
Good luck!
PS if you are from New Jersey, probably not a good idea. I think it's best if you are actually spending money on a plane ticket (or a very long drive).