I'm not sure I would advise you to "rip them up." If your friend can prove that he was not the driver in the photos then he is cleared. I do not know of any way they could come back at him as the owner. To ascertain this you need to consult an AZ attorney.
And your citations will eventually show up on your driving record in GA. If you fail to appear a warrant will issue for your arrest. I would advise you to defend or pay these citations.