Two days after the 49ers' loss in the 2012 NFC Championship Game, general manager Trent Baalke was surprised to stumble onto defensive tackle Justin Smith lifting weights at the team facility. Today, six days after the 49ers' final minicamp of the offseason, Smith, 33, spoke with the media after signing a two-year contract extension that could keep him with the team through the 2015 season. It's the start of vacation time for coaches and players before training camp, but Smith didn't speak via conference call from a resort.