While driving going towards store around 3pm (Melbourne time) when gps started acting up and we ended up getting lost 3 times. Asked passenger to take picture of bridge (3 pictures) where we got lost. While outside store, heard humming sound and thought was a train sound but not likely since it was close to the freeway. While going home passenger took 2 more pictures. After arriving home and dropping off the passenger, Got a call from her passenger about the picture that she notice a different object in the picture. That's when they started calling people and start getting opinion on what was on he picture. I got called about it and just relaying what has transpired.