Glitch in the Matrix

I went out, parked infront of a store, bought a 6pack of water and went to register nr2, paid with change.

Half an hour later, I remembered I wouldn't be going out anytime soon again so I decided to buy more water, and everything happened in the exact same order, I parked at the same spot, entered, bought a 6pack, register 2 is free, same girl working there, I even paid with same ammount of change coins. She looked at me with a bit of horror and confusion but couldnt see me smiling under my mask.