He doesn't want to answer any questions about Mayweather and look like a chump on camera time after time, Top Rank is still hiding him after the JMM3 debacle
Just a coincidence. He usually arrives this time right before his fights to do the last few weeks of training at the Wild Card. He usually arrives Saturdays too as he completes his workweek at Congress.
Promotions already happened 3 months ago when Pac came here to the States to do the official big city promotions like New York and LA. This is where Pac and Bradley did the photo shootings for the fight.