He recognizes the Sandevistan on video and notices that, unlike the previous owner, David is not suffering from cyberpsychosis.
Perhaps it would be useful to bring him in as a tester.
On the Subway, David catches Lucy stealing chips from the passengers.
Lucy says she only steals from corpos, and invites David to join her. They make quick work of the car.
David collapses. He really ought to be on immunosuppressants. The paramedic decides she'd rather chop his augment than treat him, and Lucy saves him.