I stopped in to this place fo the first time last week on the way past because their phone systems prompts were funny. I got a pretty good vibe from this place and bought some ammo in support. I reload and although pretty picked through was happy to see a shop support reloading.
Glad they responded to op and don't blame them for trying to explain the employee's reaction. They started with taking responsibility for his behavior and that's rare.
If chemistry isn't right then move on or come back another time. Trust your take on others. If they annoy you then it will only get worse.
Best to all.