I've been given free tickets to a charity fundraiser tonight, in support of one guy running for city council. Normally for fundraisers, I wear a cocktail dress, but I'm not sure here. It's at a local church (our's actually, before we stopped going), so low key venue, but there is a silent auction and live band. Invites was through e-mail, from the person who had bought the tables and the website for the event looks more on the informal side. Nothing about dress code anywhere. Any suggestions??