Try Here
Campground Details - Bayou Segnette State Park, Louisiana - ReserveAmerica Campground Details - Fairview-Riverside State Park, Louisiana - ReserveAmerica Campground Details - Fontainebleau State Park, Louisiana - ReserveAmerica New Orleans Jazz & Heritage Festival
The first one is on the Westbank and very easy to get to Jazzfest. Seafood market right by the entrance. The other 2 are on the North Shore. I think all are open. If you use Bayou Segnette let me know and I will stop by as I live on the Westbank.
If you do get close to the French Quarter you will have free WIFI, much of the city has it now.
Signette appears to have open spaces, better jump on it.
Jim