Well if UPS is the same there as it is here, no you won't work Saturday cause they won't want to pay the overtime. You'll work your behind off tomorrow and play catch up next week to cover what couldn't be delivered today. That's the way it works out here in the Seattle area and we've had plenty of days this winter where drivers couldn't make it up icy hills or power outages affected operations. You name it, it happened this winter. Preload just works harder in the same amount of time.