Yikes. The thumbprint is one of my favorite things about the iPhone 6. Whoever 'found' her phone turned it off, or at least turned off the cellular. I hope it was the former, as I have it set to alert me and lock once it does connect.
So my wife doesn't know it yet, but on 'find my iPhone' her phone just popped up at my mother-in-law's house across town. My mother-in-law was babysitting at our house today. Somehow my wife convinced herself that she lost the phone at the park, and somehow it was turned off and got to my mother-in-law's house. Oh, and the grill was left on. My daughter said: "Momma cooked vegetables at lunch".
Beats mine. My wife dropped it on the sidewalk by accident and in two minutes it was gone. Exchanged texts with the guy; even sent him a photo of me holding two Benjamins and offered an exchange. Got him as far as the Airport before he chickened out. Fucking LA.
The best part is if you have the phone, there are probably thumbprints on it and copying them is quicker than brute-forcing a password.