AITA for demanding keys back from DIL?

AITA for forcing my daughter in law to come home from her trip and demanding all the house keys back?

I sometimes babysit my grandchildren when my kids need me to. This is about my

son’s wife Jenny and her sister Samatha. My son is overseas for work at the moment and Jenny

was taking a girls trip this week. The original plan was for me to watch the two grandkids

from Monday to Friday. Their trip is a three hour drive. I have only ever given my son keys

to my home and they are only ever used in emergencies. This morning I came down stairs and

the kids were not in their beds. I panicked because they were not in the house and I

found them in the backyard with Samatha. (Who I don't know) She let herself in and took the kids