I keep my fob in my pocket. However, this was a car wash, and you can't keep the fob. You have to give it to the car wash guy. It's a similar situation when you valet. You don't keep the fob, you give it to the valet guy. Maybe next time the car wash guy / valet guy gets the fob, and I keep the key that's inside the fob. Be that as it may, I will contact Mazda about it and will post their response (if I get one). Maybe there's a super duper secret way to unlock the car if the fob is inside.