Right. The secure facility is what allows them to enforce a rule prohibiting weapons. But what is the text of that restriction and what are the consequences of violating it?
I don't think either of those are to be be found in IC because Indiana law does not prohibit it, it simply allows for such a prohibition in a public hospital with a secure facility.
Heck, it could just be as minor as a fine if you're caught violating their rule (like spitting on the sidewalk or something equally trivial).
Yes, this is exactly what I'm talking about. Rules, policies, even laws are subject to how or if they are enforced. Often these are put into effect to ward off the worst cases when actually someone who knows and understands what they are doing, while keeping a low profile, is fine.