It depends entirely on how many deliveries your fedEx guy has.
If they have a full day of deliveries, they will not even go out of their way by one minute to get your package to you early.
The FedEx drivers are hourly, and giving them more than their daily hours means they get OVERTIME. Especially this time of the year, when packages aren't sent in mass like around the holidays, overtime is a bad bad thing.
Goal 1 is to ensure that the packages that are scheduled for speedy delivery are delivered.
Goal 2 is to ensure that the drivers do not have overtime.
Goal 3 is to get every other package scheduled for delivery TODAY to its destination.
Goal 4 is to do any extra with remaining time.