I looked it up at the hotel's web page:
Parking
On-Site Parking Available
Guests may park in the covered self-park garage attached to hotel for $40 per day. Over-sized vehicles, bus, or RV parking available in the adjacent outdoor lot at additional cost, not affiliated with the hotel.
Cost: $40 USD
Ouch, that would be $280 for the week, about $100 more than I'm paying near the dock. I think I'll stick with my regular plan; drive 5 hours from home to Hammond LA on Saturday, then drive the rest of the way (90 minutes or so) to the parking area near the dock.
Doug