We're a little late getting this to you, but the SPCA is offering free pet food today. Check it: "Tomorrow, Wednesday, Feb. 3, the Purina ONE Tour for Heroes is making its stop at the San Francisco SPCA. Purina will set up a temporary food bank to give out more than 1,000 bags of pet food to Bay Area pet owners from 2-7 p.m., while supplies last." Location: 250 Alabama Street (at 16th Street), San Francisco.