You will get whatever is stated on your reservation. If it says full size, then you are guaranteed a full size car. If you booked an intermediate and hoped to get a full size on the Aisle, well, then an intermediate is what you will get.
perdidobay,
They have changed Emerald Aisle. If you have only booked an intermediate, then that is all you will get. EA has gone to intermediates only. And, just an FYI, EA is no longer onsite at Tampa, it is a shuttle ride to where Alamo and National share.