I thought best part of the episode was how ricks decision not to pick up strangers showed that guy dead at the end. Its showing that even though its harder then ever to trust people, without it you are dead. By yourself you aren't going to survive.
people say that character running after car was a reach. But what if you had not seen people with cars and safety in a long time. What if you were ready to just kill yourself rather then face ****ed up zombie world alone? You might run after a car begging them to stop.