Just for the record, I don't trust most tire installation outfits. After some bad experiences I now check tire pressures and re-torque the wheels as soon as it is back in my possession, i.e. before leaving the location. If it's not done right, I go back inside and complain.
I've had some good experiences where I've watched them set pressures and use a torque wrench and everything was bang on. I've also got a car back with three tires 10 lbs low and one tire 25 lbs high(!). I've also had torques all over the map, and once had to go all Lt. Worf on the lug nuts to back them out so I could re-torque them properly. A friend of mine had his wheel nuts ridiculously over-torqued by an idiot with an impact gun, to the point of damage.
Find a good shop you trust, and stick with them.
Anyway, glad to hear that Tesla resolved the issue to your satisfaction. Now just make sure those nuts are torqued properly!!!