You all don't have secure idle?
Rig is always locked. It is company policy, but my primary motivation is my personal gear that I leave in there. We do keep the outside compartments locked too. We carry two sets of keys and the emt gets a fob.
Btw, I always thought the point of locking the rig (at least here) was to provide a second key for securing narcs, the first being the narc box. Is that even a requirement? Two locks for narcs?