I dont have the courage (or finances) to let a dealership touch my vehicle.
Did the recalls myself (out of pocket) and my truck's never once been flashed or touched by a dealership since the day I took delivery in 2016.

I wish you luck Sir.
Before you drop it off take pictures of the truck inside & out and under the hood, write down the mileage, take note of the before & after MPG and DEF usage if possible.
Good luck,
-Jake-