I bought a sealed iPhone 5 for tmobile on craigslist. This guy said the phone is fully paid and it has a clean imei; i couldn't check if it was really fully paid but it had a clean imei. But when i tried to take the seal off after I had paid, he took this silver bad off of it saying I don't need it (i think it was a little bag that has a nano sim card and other instructions) and just put it in his pocket. I thought it was suspicious because he could be using information in it to report it as stolen or lost but I just passed it and left. But just to make sure, I got his license plate number on his car. Is there anyway for him to report the phone as stolen or lost, and if he does, can I report him back since i have his license plate number? Thank you for the help!