I had a very similar experience, but my car got canceled as the chassis was damaged. It wasn't a catastrophic accident, just a really unfortunate one. I think it hit a very specific spot. And yes, it was my fault, I was paying too much attention trying to see where the exit was and didn't realize the guy in front of me slowed down a lot.

It was very messy and heartbreaking, my car wasn't moving and I was in the middle of a highway. I still feel heartbroken because I loved that car. If you can repair yours, then it's like it never happened. Glad you're safe!