Sad to know. Next time stack shopping stuff in trunk and lock it so that it cannot be opened from the lid under the seat.
Whenever I go shopping especially with family, have to leave some shopping when it is no more handy in the car and it worried me always.
Ma father once told me not to leave any handbag, sunglasses, or any small object even a coin can lure an innocent kid on the street to break the windowglass and have that coin to buy one small candy.