Purchased TT (undisclosed salvage title came in the mail)

I’m like you. I tend to trust people until they prove me wrong. Not all salesmen are liars. I was in sales for a while and so was my mother. We were both well thought of and had lots of referrals.
I also would be upset to get a salvage title in the mail when not expecting one. If there is no mention of it in the sales contract, I would head on down to the dealership and see what they say. Know the law beforehand and talk reasonably.