Help: my 2014 Prius broke down in AK

Here's my situation:

I purchased a used 2014 certified pre-owned Prius in 2019. I've tried to take good care of it -- it received its 60000 mile service in December. In May, I went on a trip from Anchorage to Soldotna, AK. 2/3 of the way in, the engine started to whine, but no warning lights came on. I pressed on, hoping to make it to town, but twenty miles from Soldotna, the engine conked out. I pulled over and was towed into town.

On June 7th, I finally got the Prius to a Toyota dealer. The dealer established that I had a valid powertrain warranty, but it took them an outrageous 2 months to complete the required engine teardown to the point of failure. Before doing the teardown, they required that I approve the action and agree to cover $1,000 of repairs in the event the warranty company ultimately didn't cover my claim. So I did -- what choice did I have?

Today, Aug 21, I finally got word that my warranty claim was denied. Apparently, the heat exchanger failed, causing a total engine failure, and apparently the heat exchanger is not part of the powertrain.

This is turning into more of a rant/comment than a question, but I guess my questions are:

1. What would your all do in this situation? I'm going to talk to Toyota and complain about the horrible customer service I've experienced from beginning to end, but that won't solve my underlying problem.
2. Does a 2014 Prius with a broken engine have any value? I've moved from Alaska, and I don't have any idea what to do with the hunk of junk at the dealership.

Any advice welcome! Thank you.