Doc Fee
They're quite negotiable. You point to the amount and tell the F&I worm "I ain't paying that ****, fix it". If he gripes, leave. You probably won't make it out of the office before he goes to discuss it with his "supervisor" and grudgingly agrees to remove it.
Really doesn’t matter what the dealer charges for doc fees. The only fee a buyer should be concerned with is the final price for the truck out the door including all fees and sales tax and dmv charges.
In Michigan dealers are required to keep the paperwork (not computer files) for 7 years. That is what the Doc fee is for. They are supposed to charge everyone the exact same amount. Nothing says they can't give you a discount equal or greater than the Doc fee however.

