Just like the only thing past ludicrous speed is plaid, Autopilot needs a mode that is beyond Chill: Chillax. Instead of driving like Walter when he's totally late for a bowling tournament, autopilot in this mode would drive more like Jeff Lebowski: just like totally chill man.
In this mode, autopilot would behave like:
-accelerate slowly as possible (ie, don't spill your beverage man)
-speed limit setting is more of...