I mean, duh, but most shops aren't dry to begin with. Odds are that your last brake or oil change was done well past any legal limits. Especially if it is a franchised place. Independent and local auto-shops are your best bet for quality service. The franchise places may have 'rules' but they are overlooked usually as the franchise owner has pressure from above. Generally, they get the bottom of the barrel employees that have washed out of the independent shops for being piss-ants.
This goes triple for YourMechanic and anything else that smells like Uber-but-for-auto-repair. Those techs are flat-backing on a neighborhood sidewalk in whatever rain or heat there is, likely in huge violation of local ordinances and HOAs, with whatever tools they got in their truck. It's a shit job with big risks that only real addicts and drunks are going to take when they have no other options. Turns out, auto-repair is hard and can't be done without a lift or a pit.
I don't want someone who's inebriated (or withdrawing, or with altered priorities) attempting to do anything where they have to be safety-conscious.