Usually, with boundaries, consequences are something you will do to protect your boundary, not a punishment to change her behavior. She has free will to behave how she wants, and you have free will to take actions to honor your boundaries.
So, if you continue to do that, then I will... needs to be something that is objective and purposeful. Maybe, turn off the router during evenings. Maybe, remove the computer from our living room. I can't think of any other good ones, maybe someone else can. But a proper boundary is about what you will accept and what you will do to maintain that. It's not about trying to modify her behavior and punishing when you don't get your way. It's about modifying your environment that you have to live in so that it is not intolerable for you.
Adinva 51, S20, S18 M24 total 6/15/11-12/1/12 From IDLY to H moving out 9/15/15-3/7/17 From negotiating SA to final D at age 50 5/8/17-now: New relationship with an old friend __ Happiness is a warm puppy.