I've noticed a similar thing on rentable bikes in SF and NYC. People don't put the qr code over the existing bike one, but they put it near enough that your QR

I've noticed a similar thing on rentable bikes in SF and NYC. People don't put the qr code over the existing bike one, but they put it near enough that your QR reader might pick it up by mistake and open up the order site for a pizza chain. Fortunately, when I'm using the bike app directly, these codes are ignored, but new users don't necessarily have the app yet.