How did he get the verifier terminal to have a transaction he could pay on? The terminal can't properly ring up a purchase. That's the job of the POS.
Though White people would be honest about a purchase like this, the whole thing looks fake. He should have made sure she woke up so she doesn't get fired or worse yet get robbed or harmed by a non-White taking advantage of the situation. At the very least he should have checked on her to make sure she was not having a medical issue or in need of other assistance.
If this was real, she certainly got fired over this.