Big Smoke's first job for Carl is a lift home from the police station for Jeffrey Cross, who has been calling himself OG Loc since he went inside and intends to be a rapper now that he is out. His first act as a free man is to name the person who wronged him in prison.
So the mission turns into a pursuit of Freddy on a PCJ-600 through Los Santos, and it ends with OG Loc delivered to the back door of a Burger Shot, which is where his parole officer has put him to work. Everything OG Loc asks for later starts here.