Honestly I'd just expect crowds, and if there isn't any, great! I think October is hit and miss these days, with all the different states having fall breaks, Gay Days, Columbus Day, and then the Halloween activities draws A LOT of people all by themself! October isn't the low season time it used to be (not sure when is though! LOL).
Hopefully the crowds will be low, but I think it's good to just expect the crowds and be prepared.