I rented EA at MSY yesterday (12/26). There were *no* cars, even for people with reservations. We arrived at the rental location at 2pm, there were about 12 people on the waiting list ahead of us. 3 were waiting for SUVs or minivans, so we were able to jump ahead of them on line - we still waited about 45 minutes.
The counter people were trying to get cars from other Alamo & National locations (downtown, Slidell, Baton Rouge), but there were none to be had
The attendant told us this is happens more often than not. We met a friend in Lafayette who told us he had the same experience just before Thanksgiving.
(I also checked other agencies - there were no available cars at Avis, Hertz, or Budget. Enterprise had cars, but there were 40 people on line at the airport counter.)