Did you have to sign a membership agreement? If so, is there any language regarding weapons in the agreement? The web site only had this for "conduct":
"11. Club Conduct In order to preserve the enjoyment of each Member's shopping experience, BJ's strictly prohibits running, horseplay, loitering, the consumption of alcohol or other disruptive conduct on its premises and reserves the right to require anyone engaged in such conduct to leave the Club."
I see nothing about OC/CC.