Not in Orlando, but I had made a reservation at the Tulsa Airport using this code. Made the reservation months before it went 'bad' - reservation was for July 12 - 21. Emailed
Alamo about the issue [had 1 reservation for Orlando and 1 for Tulsa] and they assured me they would honor the price as long as no modifications occurred to reservation. And that is exactly what happened in Tulsa - even though we significantly upgraded to a much more expensive vehicle - which I did pay the difference for the upgrade. Manager did have to come over and do some coding to make it keep the $30 off from when we upgraded to a bigger vehicle. I didn't have to do this in Orlando and I was able to get within $8. of the original reservation using another code. I was very pleased with the way it was handled.