At the November 2012 meeting of the Merchants of Upper Market Castro, a private organization, myself and other grassroots gay and trans activists were allowed to attend their invitation-only meeting. Present was now-former SFPD gay Castro cop Chuck Limbert in street clothes, serving as a security guard. When questioned if he was on duty, he said no.
Fast forward to February 2015 and Limbert has resigned from the department under a very dark cloud. Here's what Seth Hemmelgarn wrote on March 5th at the Bay Area Reporter blog:
Former SFPD chief George Gascon, who's now the district attorney, is considering charges in this LGBT police scandal but don't hold your breath waiting for him to indict Limbert.