Sorry no idea re your area.
I loosen the wheel nuts at home and provide a socket based tool for them to use. When you get it home check they haven't overtightened them.
The last time I had my tyres changed, I just got stuck in and loosened the wheel nuts in the tyre shop! They said they weren't confident of operating the hammer so close to the bodywork.
We had a good chat during the work, and everybody learned things.
They were reluctant to set the pressure low, so I had a very slippery journey home, then I used my gauge to set to 24 psi. They'd put in 32!
