You gave me an idea. I used "Time Machine" to go back to the last time I was working on my file and I found a file named "Unsaved Turbotax Document". The location was a bit tricky to locate so for future users with my problem select the user icon (the icon of the house) and search for "Unsaved Turbotax Document", quotes not necessary.
If you are curious where the autosave file is, I found it in the Library, Autosave Information folder. For whatever reason, searching for a ~symbol did not work for me.
Once you have found the saved file, you can do a time machine restore, open it in Turbotax and you're back in business.
