I appreciate what you've put the effort in to, I've had two phones returned to me by people with the same type of integrity you have. Once was stolen out of my backpack while in high school, the other I kind of...misplaced stupidly
Both times whoever found it speed dialed "Home" and let me know where to meet them to get it back, and both times I checked, out of healthy paranoia, the phone bill, no abuse at all.