I'm sure there are great Techs, but I think you got a NOT so great one.
Reminds me a bit of watching a Tech at a local Chevy dealer put a friends Gen 6 Camaro up on the hoist. ZERO attention to WHERE the pads were under the car.Tech did damage to the underside.As well as damned near slid it off the lift! There are SPECIFIC jacking points with that gen camaro. Guy didn't care.