Earlier quoted context omitted.
Ideally with fists full of cash.
I wonder if they just offered this guy a few grand how it would have gone? Maybe really well?
Show up with some money, a bunch of magic swag + cards, and offer to create a card making them some sort of in game knight or king or something. Photograph everything and have them sign a non-disparage and suddenly you've got some PR that's worth it's weight in gold. And the next time a little card mishap goes down you'll get people volunteering to give them back in hopes of a tenth of what you gave out the first time.
Or you could just do nothing because almost definitely nobody actually cares or will notice.
Jumping to sending private security to someone else's private residence feels like an absolute last resort to a much more serious issue.