Driver Walkthrough (COMPLETE) - San Francisco Mission 2-B: Go make the exchange
Once Tanner gets to Maupin's, he meets the contact and gets the briefcase. The contact tells Tanner to drive over the Golden Gate into Marin County to make the exchange. He tells Tanner not to get too hot-headed and trust these guys. Once Tanner makes the exchange, he has to go make the drop back in mainland San Francisco.
