Just because they didn't know what an Adam alert was (which is another store entirely's code), it doesn't mean they don't have a plan in place. Heck, just because they didn't tell you they have a code in place doesn't mean they don't have a code in place - it's not something they're going to tell every random member of the public about. I suspect they do have the capability. In fact, I'd be astonished in this day and age if they didn't. Perhaps they just elected not to make this announcement for you, for whatever reason.