I am sorry to hear about your failure. As said above, you need to get the car away from that service centre and get a more accurate fault diagnosis.
I own an early Model S. It is "only" 78,000 miles, but over nine years old so well out of warranty.
I appreciate that I am running a risk and it could land me with a big bill any day. Some of my friends think I am absolutely mad owning it out of warranty. BUT, over the last three years of ownership it has been cheap to run and own compared to any ICE motor I have ever had. It is in my mind that if I have an expensive day like an HV battery or drive motor, then I have to keep the cheap times in mind and look at the costs and decide whether to repair or sell as is for "spares or repairs". Every time I go to a service centre (it did another door handle a few weeks ago), I ask the question. "How often do you see an early Model S with a failed battery pack?" The answer is always "hardly ever" or "really unusual". Now they could be bull sh*ting me, but I like to think they are not.
Good luck with whatever you decide to do. As said on here, only people with problems complain. It would be a boring forum if every day there were 10,000 posts "my car ran fine today".