If you do it right, no, they wont stick out. Yo don't need to pull them so tight down to your scalp that it hurts. In fact, if it's still a little loose around the root, it's ok, even better. They lock faster and easier if they have room to move. That way they will stay laying flat. One might decide to stick out a little, but that's natural. You wont end up looking like Sideshow Bob. Don't worry about that.
And no, once you do the TnR method once, you don't have to do anything except wash. If you feel like you want them to look a little more maintained for any reason, there's a new locking gel from dreadlockshampoo.com. It's not a wax or anything like that. Ask SE about it. He's giving it a shot on his beard locks. And he's the biggest advocate for natural/neglect. If he's willing to use it, it's got to be fine.