He could have only dropped one or two loads that would have had to have been moved by hand. Now you have a perfectly good reason to rent a bobcat for the weekend and play in the dirt.
On a more serious note, even though it looks like a lot (looks like about 25 4-6 yard piles), it will disappear pretty quickly once you start to level it out. It would have been nice if you could have had some warning of how many loads were coming so that you could have made arrangements to spread and grade as each truck load came in.
Good luck.