Depending on the value, the police probably aren't going to show up at your address, but use that card again at the store in the future and you might find the security guard coming over. Or, like many stores, they wait for you to do it repeatedly until it adds up to enough for a felony instead of just a misdemeanor, and then they bring felony charges...
The stores have cameras. Likely someone is well aware those weren't all bananas, and has it on video.
Play stupid games, win stupid prizes.