That depends...
1) If I have anything a dollar or less on me (but equal to or greater than the face value of the coin)
2) Can I reach the little bugger?
3) Newer wheaties I wouldn't give much thought about if it is in anything more than a "take-a-penny-leave-a-penny" dish, but if I see anything silver, I might spend half an hour contemplating.
I wonder if you can request the keys from the manager if you offer a big enough donation for sorting through a box's contents...