Uh no you are not. In fact it is now illegal:I know that in CA you are allowed to open carry an unloaded firearm,
And a sign stopped the gang problems? Wow.I used to work at an AMC theater, and the company policy while I was there (2 or 3 years ago) was to have "no guns allowed" signs up. The one I worked at had some trouble with gangs and such and had signs up before AMC bought out the original theater.
Where's the confusion? They simply want potential criminals to know that they are not allowed to bring their firearms in should they choose this establishment for their societally deviant behavior.