Had this happen to me a few months ago.
That looks like 2 plugs, not just one. Did you keep the wrench and does it still work?
I have 1 patch in my Pirelli Summer tires in over 25000 miles, and I work were they are always spilling nails and screws. I'll be putting Continental DW on next week so I will probably run the rolling magnet around the yard twice a day instead of just once