He also told me they intentionally adjust the allignment to pull to the left slightly because most people drive in the right lane and this compensates for the slight slope in the road? Have you ever heard of such a thing?
No, this is my third F-150. Every one pulled when I picked it up, and by the time I got done with them they all drove straight. The 99 4x4 Off Road SCab was the most solid. The tires on my last truck had flat even wear at 28,000 miles. I had it in for abnormal tire wear and pulling to the right at 4665 miles. The tires had to be rotated at 5,000 miles, and stayed there until 25,000 miles.
I swear, if they don't know, they make it up as they go along. If you have them check it again, they may be more careful.