I delivered pizza for a while. A white guy in a new Audi driving into bad neighborhoods turns heads. After the second time someone approached me in a hostile manner I quit. I wanted some extra cash but not to have to kill someone over it. My manager knew I was carrying a handgun but was so short of help that he turned a blind eye. The other employees gave me a bunch of crap like "I've delivered there for years and not been bothered so you don't need a gun" and "if you carry a gun you'll get shot" until one of the girls was beaten and robbed.
You can put Papa Johns on the list of companies that expect their sheep to go unarmed.
If they expect you to be unarmed, then they should expect to pay you more for combat pay. Why would you work under those conditions, unless they paid you more?