Grudgingly, the spooks had gone round to the villa mid-evening when they realised the chip wasn't communicating. First, they noticed the car still there which was reassuring. Then they banged on the main door but got no reply.
Going to the south side of the villa, they looked up to the balcony, saw the figure in the recliner, heard the awful loud music and one said to the other.
"I can't stand that racket. Let's fuck off back and have a few beers!"
And that was that. They didn't check any further... like speaking to him!
Sloppy, for MI6!