if it were me, I would be fuming. I think I would do the same as this guy actually. I would probably 1) demand a new replacement vehicle, and if that doesn't work 2) sue for a new replacement vehicle (especially of the other one isn't repairable) 3) actually I think insurance would replace with a brand new vehicle and then the insurance company would actual pursue legal against against Tesla for the cost of replacement with a new vehicle. if they do repair it I would still at the very least 4) sue for a very large amount of money to account for the repair work (obviously), a loaner(or rental), & also $$$ for the sudden depreciation in the value of the car now that it's been labeled as being in an accident (which alone could be $10k+). That last part might also actually be supplied by the insurance company. (I think someone on these forums who had an accident pressed their insurance company to not only pay for the repairs but also to fork over the $$$$ in loss in depreciation of the value of the repaired car and that worked.
In any case, not cool. If it were me, I'd probably seek a lawyer ASAP on course of action to take.