Thanks for the interesting read everyone, entertaining. Kind of like reading about that Colorado cake shop case.
I’d ask the owner why he felt the need to rev it, like others have said and see his reaction. I assume the owner would feel a bit sheepish about being caught out.
If he was respectful after that, I’d let it go.
If he was rude after that then let him have it, both barrels.
Gen X’s opinion.