Well, um, no, it wouldn’t. She wasn’t DRIVING the shopping cart, btw.
Leaving the scene of a property damage accident that you caused without exchanging information, whether you were driving or carelessly hurling shopping carts at cars, is a crime. As you correctly point out, she wasn’t driving, which it can be argued takes the actual property crime from careless driving to criminal damage to property / vandalism, as she intentionally shoved the cart at another car.