I was going to park in front of the store at the shopping mall. before I reached the parking spot car was not slowing down automatically after releasing the acceleration pedal. I decided to use the brake (which I rarely use because the car stops automatically when you release acceleration pedal) and I really don't remember how everything happened and I might accidentally step on the acceleration pedal instead of brake, but the car was not able to detect any obstacles or objects and I ended up braking heavy metal bench in front of the store and broke into the store. I ended up smashing entire front window and drove into the store as deep as 1.5 feet breaking the liquor boxes. After this heavy impact the airbags were not deployed. My concern is into two safety issue: Airbags not deploying and car safety sensors not functioning.