[cas951]

Based on my experience with my cars they always over tighten the lug nuts. I've only seen one shop that actually used a torque wrench. Once they tightened so much that when I tried to loosed the one with a lock I broke the lock socket. This is when I stopped using the locking lug nuts. I've always re-torque my lug nuts since then.

Checking the torque also prevents your rotors from warping.