There are a few hotels including the Maison St. Charles that have cruise package prices if you plan to stay over at least 1 night. With the package deal you can get reduced parking charges--can't remember exactly what their rate was but the hotel for the night was aprox. $89.00 with a free limo ride to the pier on your cruise day. I think parking was $6 per night????? didn't pay much attention to that because we'll be flying in.
We called the hilton and got their cruise special--- $99.00 for 1 pre cruise night and free parking all week. You have to call to reserve though and pay up front vis credit card, however you can change or cancel upto a week out.