Tips at Walmart?

So I know we aren't allowed to accept tips as company policy. But I work in the bakery and a customer wasn't taking no for an answer I said no one more time then walked to the other side of the room to get a bucket of frosting and he threw a 10 dollars bill into the bakery and disappeared what am I supposed to do now I don't want to get fired over this?

Tips at Walmart?
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