Kim,

How frustrating and worrisome for you.

I have two ideas. First, what about taking her out to lunch, coffee, whatever. Just the two of you. From her issues with abandoment, she most likely needs reassurance that no matter what, you love her and wont be leaving. Tell her you have certain expectations of those in your family and explain (again) why its stupid to do what she's doing. Tell her that if its done again, you'll not only be extreemly disappointed in her, afterall, you thought she respected you and your home. If she's sneaking out to do something she isn't allowed to do, discuss it. Maybe there can be some sort of compromise?

If that doesn't work. I too, was thinking of the alarm thing. I know its expensive, so that's kind of a draw back. But at least she'd have a really hard time sneaking out again.

I'm sorry you're having to deal with this. Being a parent must be so hard. Moreso when your hubby just wants to go to sleep after something like that.

Take care