The $500 safety competition

There was no way to tell if you're actually in the sweepstakes. Even if you fill in the Google form and share your location with somebody, there's nothing that says that you completed the required entry sweepstakes. Also, if they don't show that there's a winner, I'm going to think it was just for good PR. How do people know if they're actually qualified to win if there's no confirmation. Also, do you have to share your location with somebody 24/7 or just from the 8 p.m. to 5:00 am?