I have (in a former life when I worked on/with ATM machines for big name armored corp ) retrieved the keys locked in the back of the armored truck by removing the roof vent with common hand tools maybe 9/16 socket and ratchet? then fishing out the keys with a coat hanger, it took a few minutes and was far from inconspicuous but we were all parked right in front of a bank the whole time. Pretty funny and glad they weren't my keys. They took a chance one of us could get in before calling a locksmith.
