The only thing you could actually do without looking at the screen would be fishing because you can turn the rumble on so you know when to hook a fish, but there's nothing you can 'button mash' or 'tape' to technically play while not there.

This just sounds like you've swallowed someones bull and then decided you didn't like the taste so wanted to report them without even thinking about if it was technically possible. Sorry if that's overly sarcastic but it's just a bit of a facepalm situation because you can't bot on the PS3, you still have to interact with it even if multitasking and not fully concentrating on the game.