The lemon law thing is an interesting topic - one that we as dealers have VERY little to do with even if it is a local customer, beyond simply recording/providing service records etc.
But I did have a customer recently looking to buy a new truck, from California, whose previous truck was from Mark Dodge Louisiana and he did successfully get a buyback. Here's his story (he's not on the RHO forum, but I did tell him this would be posted without his name)
"So my attorney stated to me originally that his belief was it would actually fall under what state I took delivery in. So he was fairly sure that it would be Texas lemon law, as I had met your delivery guys outside the Houston airport. That said, he said screw it let's try and see what happens. Originally FCA did not want to do a buyback, and just wanted to do a cash settlement. However being that they agreed to that, he figured they either 1, didn't care, or 2, just didn't notice. That said, he went back and forth with them for a bit as he figured once they offered anything, the location argument was out of the question as precedence had already been set.
Maybe I got lucky, or maybe it is technically based on where the first "real" registration takes place (not the temp tag). Honestly I'm not sure there. Either way, it's worth a shot."
So it seems that there may be a bit more combinations, complications, alternatives, and coverages - than simply being entirely SOL in the unfortunate event that you found you and your truck in such a situation.