We are enroute to the Southwest for the winter and after a bit of business in Florida, and since it was kinda on the way, we decided a few days in New Orleans was a good idea.
I checked out potential camping in the area and found French Quarter Public Parking as a viable option. It's not cheap at $50.00 per 24 hour period and it's dry camping, no hookups, no restrooms, no showers. There is noise associated with being in a city. It's a parking lot.
Located in Treme' only a few blocks from the French Quarter makes hanging out in the quarter really easy. For those of you concerned with safety, there's a local police precinct about a block and a half away and the lot is patrolled regularly.