NO! You're mixing up irresponsible parenting with control. Your kids were home alone and they tried to get a hold of your W who was God knows where. So they tried calling you. If they were in any mortal danger, your W could be thrown in jail.
Make a log of these incidents where they are left alone. The next time something like that happens again, when the kids call, go over and pick them all up and take them home with you. Tell your W that while she has the right to do whatever she cares to do to herself, when it comes to your children, they become the priority.
When she start objecting it, tell her that you have logged everything down and are turning them into the L for the record.
This isn't a test! It's lousy parenting from an irresponsible parent.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.