Furthermore, the insurance the person is asking for is disability insurance. Common sense dictates that they will ask for medical records, and therefore need a HIPAA disclosure document.
If what the poster alleges it true, I agree wholeheartly that it should have been more clear in signing up for it, but it seems odd that the poster didn't think that state farm would ask for medical release forms for disability insurance.
TL;DR, I think there's more to the story than what is alleged here.