Is there any information out there talking about how the Autopilot will handle speeding? There's a lot of places in the country where 5-15 mph above the speed limit is the norm, and while I'd imagine the cruise control will let you set it as any speed, will it drop back down to the speed limit every time you pass a sign? Elon said you can select if you want a more aggressive or passive autopilot, but I haven't seen anything specific to speeding.