New to the forum, looks great.
So I just got off the phone with a person at the Ca. State Attorney Generals office. When in an incorporated are of Los Angeles you are permitted to carry an unloaded firearm.
Now he clearly said there isn't a law written that states you cannot open carry unloaded because of that, doing so isn't against the law kind of by default. All you are doing is subjecting yourself to search or inspection by LE anytime they want. It is at the LE's discretion on how he/she approaches you during the inspection. While you might be politely asked to surrender your firearm for inspection, you should also expect to have a gun drawn on you and subjected to a felony stop procedure. Once you are in custody the firearm will be inspected and the situation will carry on from there.
The instant you carry a loaded magazine on you with a firearm, (not inserted into the firearm) the firearm is considered to be loaded. Even though it is on the opposite hip.
He summed up by saying, "You are permitted to carry an unloaded firearm on your person while in public, but your asking for unnecessary excitement."