Wow....I can't believe she added you to FB then gave herself away like that

Although I think her and ds would have been fine, I would jump all over her about the big, fate lie. I like the touch about going to the library - she knew you would say yes to that

I wouldn't be bribing her to do homework - all she really needs to do is an hour a day max and it's done with. I would not allow her friends over until the homework is done first.

At least you got her number - if you want to get to this one you have to limit her favourite thing - socialising! Work first - then friends over.
Tell lies, lose the garage privilege for X amount of days.

I'd rip that phone off her at nights - teens need so much sleep it isn't funny and half the reason kids hate school, they are too tired to give a crap

GL