Nope. Nope nope nope. It can, very theoretically, do each of those things, but it can't switch those modes, must not take off automatically (there's no safe way to do this, and therefore would be very illegal), and requires vigilance that's above manual w/r/t landing. Please stop perpetuating urban legends.

http://www.askthepilot.com/questionanswers/automation-myths/