When that event happens an auto save is automatically created in the first spot. When you load the game again you can either manually load it or hit the continue button and that auto save will load and you will be back where you left off
I had hoped that would be the case, but it didn't happen that way. I literally lost those 4 hours I played.
If you click load then at the bottom where the number of pages are click the “A” which is where the auto saves are and try there
