My workplace has a "no weapons" policy, but at least they foot the bill for armed security.
It was really interesting a few years ago: Corporate HQ brought in a couple consultants (former bigwigs in the Boston PD who had formed a consulting company). Their whole 4-ish hour presentation was basically a bunch of scenarios, not all workplace related, and what one might do in those scenarios to stay alive. What kinds of cover to use, improvised weapons, consciously evaluating exit routes in unfamiliar places, etc. It went way beyond the "run, hide, fight" video we get every year.
There was a really interesting turn at the end where one of the guys was like "I know corporate policy is that you're not allowed to carry here, but you've got to decide what you need to do to keep yourself safe". We had a guy hired by corporate HQ not very obliquely telling us to ignore corporate policy if we felt it was necessary. It was an odd situation. I've never heard of anyone getting "made" at work, so I can't guess as to the consequences.