I don't think anyone agrees with you on this. It's never been widely accepted as the fact as far as I can ever recall reading here.
Here's the part of the CHP code you mention:
O. The granting of a concealed handgun permit shall not thereby authorize the possession of any handgun or other weapon on property or in places where such possession is otherwise prohibited by law or is prohibited by the owner of private property.The problem (at least one of them) is that the paragraph says "possession", not "concealment". The CHP has nothing to do with the possession on private property. This makes it clear to me that this paragraph is simply stating that having a CHP does not override the wishes of a private property owner.
TFred
IMO (which doesn't mean much) TFred, it could swing either way. The problem is that even if a judge decides it, it will likely be aGD Judge.
So you may know how one judge in one venue reads it, and still have no idea what the rule will be in the next venue.