Conundrum

I rolled up to the local pool the other day for a swim, and as always, they have a warning sign up:

"Criminals have been active in this area. Please do not leave valuables in the car."

Good advice, I thought to myself as I locked the car and headed in. As I walked into the change room, I noticed another sign over the lockers:

"Break-ins have increased in the locker room. Please lock valuables in your car."

*Sigh*

~Guy