They're supposed to scan the QR code the moment they grab them, which essentially marks the scooter as found and the rates are frozen. Then they can take their

They're supposed to scan the QR code the moment they grab them, which essentially marks the scooter as found and the rates are frozen. Then they can take their sweet time charging them. What they're doing instead is grabbing them without scanning them, chirping be dammed, and holding onto them for a while so the bounty increases. Then they scan them as found and charge them.