That exploit would only work once. As soon as the first customer, who gets charged $20 or whatever, reports that they didn’t get their meal it would be chec

That exploit would only work once. As soon as the first customer, who gets charged $20 or whatever, reports that they didn’t get their meal it would be checked. And then it would be pretty easy to find out when the QR codes were replaced. Then camera footage of that person would be sent to the police and they would be up for fraud. Great exploit.