BBC ambiguity

I'm not one to pick on anyone's language - not yet, anyway - but I couldn't believe my eyes when I saw this example of ambiguity in no less than the mother of all English language websites, that of ... gasp! ... the BBC itself!

In Question 2 of their weekly quiz, the BBC asked: Who is being rewarded by Swiss police with large bars of chocolate?

Now, I'm inclined to wonder whether the large bars of chocolates are either:

a) rewards given by the Swiss police to their fellow citizens who drive well (the correct answer), or

b) not rewards, but just chocolates that the Swiss police would routinely carry on their persons.

Mmm ... I really don't know what to make of it. Note: You'll have to click on the picture to really see the details.