yes, we are staying there for 2 nights before our November 12th Eastern 7 night cruise and I had that same question...asked their concierge on the phone and all you have to do is call a few days prior to your shuttle need and ask for the concierge...he/she will contact the outside shuttle service they use frequently and set it ip for you....the best news is that it's CHEAP! She said $3-5 pp max!
Ron Jon's also lets you park your car there for FREE while on the cruise, so don't let the Radisson's song and dance about that perk win you over.

