I needed my winter tires put on in a hurry one late afternoon recently and I got bounced by two shops before the guy at Sears said he'd do it but they might scratch my fresh dip. I said that's why their dipped not painted
The tech took longer to get them on than I'm used to, he used a bunch of soap and was crazy careful. Not a scratch
It's up to the tech, if he doesn't give a hoot the shop is better off not taking the job to limit their liability.