fwiw I have done this and received no confirmation or anything after more than 6 months. I keep submitting, maybe its working, but it doesnt seem to actually result in a confirmable change.

for sure my retailer, which are 3rd parties according to that page, still has 100% access to the data, as they were able to tell my car was in another state when I called recently. seems pretty troubling

> I have done this and received no confirmation or anything after more than 6 months

Sue them, make it a class action.

That's not how lawsuits work. You can't sue just because you don't like something. You have to prove harm. "not getting confirmation" hardly counts, especially if said confirmation isn't required by law.

It would be cool if the researcher could have tested this before reporting

I would guess that opted-out cars like mine are still "in the system", as I can still do all the MySubaru app stuff like un/lock, start, etc.