That settles it. Metal detectors = no carry. No metal detectors = carry. That simple. Make excuses if you want about it being too crowded anyway or whatever, but if the need arises where you need a firearm and you don't have one, you might regret not carrying for the rest of what might be a short life. As long as it isn't posted, you aren't breaking any laws so you won't have to worry about jail.
However, this brings up a good question, what kind of armed security does DL have? You think they have a SWAT type team hidden away some where on standby or do they rely on Orange County/City to handle it? I wonder what kind of armed response they do have. The only reason I wonder is if you do have to draw and shoot, who might shoot you in return? If they don't have openly armed guards, who do they have carrying that you don't realize is security? A very interesting question to ponder.