The pods appeared to be commuting daily to the Global Learning Academy, at Heathrow Airport. Three weeks later they were still making the journey, he assumed, in the ears of an employee at the airport. He inferred from the fact they were still charged meant they were in use.
A spokesperson for BA said they were working with Briggs to track down the earphones.
"We are currently investigating the matter," the airline told the Daily Mail.
It was made clear that the person who was now in possession of the pods was not necessarily an employee of BA.
AirPods: A modern travel mystery
International travel is unsurprisingly the most perilous time for losing earbuds.
Unwittingly we have been presented with a travel accessory that can tell you exactly where your luggage is, but not how to get it back.
Twitter is full of forlorn screenshots of wandering AirPods being tracked around the globe.
"left my AirPod at the airport .. like i'm never seeing her again," reads one.
There's a particular schadenfreude from seeing Left and Right earphones from a $600 set of AirPod Pros separated on either side of Europe.
Some passengers have suggested using a single AirPod to keep track of luggage, lost in transit.
However the most infuriating part of being able to track the AirPods from anywhere is not being able to get them back.