Officers responded to the crash, first reported around 2:30 a.m., and found a pickup truck halfway through the family-owned antiques and collectibles store. The driver had abandoned the scene.
Police said the truck crashed through the front window and struck a metal support system that held the panes of glass together. The collision left merchandise and broken glass scattered on the floor.
One family member told KSAT he's glad the crash didn't happen during the day, when pedestrians and sidewalk vendors would have been in front of the store.
In a statement on its Facebook page, Karolina's called the damage "heartbreaking" but thanked its neighbors who contacted the police and "caught everything on camera."