Kitkat makers Nestle hide tracking devices in chocolate bars

Grand idea that:

KitKat maker Nestle has hidden tracking devices in their chocolate bars as part of a new competition in which lucky winners will be hunted down and handed a briefcase containing thousands of pounds. Once one of the lucky bars is opened, the GPS will be activated and a signal will be sent to the competition organisers at Nestle.

But what happens if a hungry buyer scarfs the bar without opening it? And then the nature does its shtick? According to the article:

The company says that within 24 hours the winner will be located by a helicopter, which has a team on board to hand-deliver a briefcase containing £10,000 in cash.

I only hope they have a good plumber aboard.