Why did you go in with your sidearm and camera? Legal or not, it seems unnecessarily provocative, and that you went in with a camera because you knew it would cause a reaction.
Would you be as critical if GP's firearm was concealed, or if the camera used was one in their phone, and not on their hat?
Sounds like you're making a lot of baseless and judgemental assumptions about voakbasda -- not everyone is a deliberately antagonistic self-professed "auditor," you know.