Is There a Gun in My Co-Worker's Car?

I quickly scribbled a note to my co-worker that said he has a gun and handed it to her when she came out of the bathroom. She calmly walked to the phone and looked at me, wordlessly asking if she should call the cops. I shook my head no as I felt like I would escalate the situation. God forbid he heard the police coming and took us hostage or something. He spends 15 minutes wandering around what was a fairly small shop. Finally he places an order for pickup on Valentine's Day which gives me his name and info to put in the police report That I sure as heck was about to file.