What I fear for is that the termination will be in his records and he will have to explain this extremely bizzare story to whoever asks or is interested. I'm glad it all worked out so well for him. Hopefully that silly detail will not affect his future.
Just an FYI, there is no such thing. There isn't going to be a record that he was fired.
Internal company records don't matter for shits.
I'd hope the owner of the company would be willing to provide a reference explaining that he was the victim of misconduct.
The alternative is having whatever you had on your resume before + 2 month gap, which if anybody asks about you I guess lie. It's not a nothingburger though.