What Happened in Colorado chapter 15 part 7

The door of Meg’s motel room opened and Meg stared at the door way. She was still stuck under the Key of Solomon.
“Anna told me you were innocent for a change” Sam said.
“Well, now that you’ve discovered I’m actually a saint, could you get me out of here?” Meg suggested. Sam shook his head and walked towards her, though kept a safe distance. “First I want to set a few things straight. Castiel is not going to leave prison, unless you do something. Personally, I don’t care if you killed that man or not. What I do care about is that you’re the only one who can get him out of there” Sam said.
“Why would I help him? What’s in it for me?” Meg wanted to know.
“If you do the right thing, then I guarantee you Dean and I will never try to kill you again. You’ll be off our radar for good” Sam said.
That was a tempting offer. “What do you want me to do?” she asked.