49ers defensive end Aldon Smith has a March 13 court date set, Deputy District Attorney Brian Buckelew confirmed to CSNBayArea.com. Smith was not present on Wednesday for a combination hearing at the Santa Clara County Superior Court that joined his June 2012 weapons charges with his DUI case from September. The lineman was not made available for comment by the 49ers Tuesday or Wednesday. "We all tend to forget that the reason we got smart is because we learned from our mistakes," 49ers coach Jim Harbaugh said on Wednesday. "That's how you get smart, by learning from your mistakes. He's been really good."