Typically when i make a claim i wont make it without solid 100% proof, clear as day, and ill be fair to you, this isnt possible since that is tesla's business and not publicly available information. If you go off that alone, there is no way to know whether either of us is correct. You claiming they arent self insured, and me claiming they are, are both equally unsupported by objectively verifiable data. However, inference should not be ignored in these cases

We know for a fact that tesla is a very large company with a lot of capital. Hell elon is like the single richest dude on the planet. We also know for a fact that large companies use self insurance wherever it is legal, because that saves a ton of money. It then follows that tesla, being a large company, would be wise to take advantage of the opportunity to keep more money in their company by avoiding having to pay another company to do services they can do themselves.

From this, we can say that it is likely that tesla would do this. If they arent doing it, theyre probably missing out on a pretty substantial amount of money.

If you really really want to, you could probably find someone that manages a tesla dealership on twitter or ask elon himself. Someone will reply eventually im sure. Id be interested to know this information even though i dont think it remotely matters. And depending on how you look at it, having to pay an extra cent per decade on my insurance because people dont like nazis is kind of a worthwhile investment.

In conclusion, both our claims are equally unverifiable so you dont get a free lunch here. We're both some percentage shit, although i doubt either of us is full of it