How will the auto drive determine of the police car behind you with flashing lights is looking to pull you over or looking to pull around you?
http://www.webpronews.com/nissan-expecting-to-market-self-driving-cars-by-2020-2013-08
Nissan demonstrated a fully automatic version of their Leaf hybrid vehicle. During this demonstration, a dummy passenger unexpectedly approaches the front of the vehicle, and with thanks to laser technology, the vehicle automatically dodges the pedestrian without any control from the steering wheel by the driver.