2:20 seems a bit short for the water test. They really should have put them through a wash cycle.
A few years ago, my manager accidentally left his Nokia 6300 in a pocket during a full wash cycle. After leaving the phone a few days to dry out, he put the battery back in and apart from the MicroSD slot, everything else on the phone worked fine (screen, making calls, camera, Wi-Fi, buttons, etc. all fully functional) While the MicroSD slot stopped working, the MicroSD card read back fine once connected to a PC, so he was still able to retrieve its content.