If the place is open, they will have social distancing measures in place. It's not like your sitting down for a coffee with them, your dropping your car off and leaving. I was at R-tech yday getting my cambelt done.
I'd just call the place, confirm their open and check what they expect you to do - I dropped car off, not allowed inside the garage or waiting area. When I paid, I had to sit in the car and they called me and took payment over the phone.