Whether or not he's liable for the ticket despite who's driving sounds like a local thing to check into. Also will be how conclusive the photo is showing who's behind the wheel. If not definitive, I'm betting it defaults to the owner.
As to paying the ticket and getting points, some older processing systems can be bypassed by overpaying the ticket a bit, and tearing up the refund check they send you --- until the whole process was cleared, the points would not be assessed. It was a neat loophole a lot of street racers and motorcycle squids took advantage of in some areas.
Insurance companies have raised heck over this loophole around the country, and new processing systems are not effected this way, but I got out of points in a speed trap in 2003 this way.