A lock assembly including a housing, a fastener that has a head, a lock member that is movable between a first position and a second position, and a barrier that is movably disposed within the housing. The barrier is displaceable between a first position at which the barrier at least partially covers the fastener head, and a second position at which the fastener head is generally accessible. The barrier is coupled with the lock member such that the barrier displaces from the barrier first and second positions when the lock member displaces between the lock member first and second positions.