Good Morning Mo.
You need to think about his motivation for threatening police or S/S ?
because this to me, appears to me to be actions after a visit to a solicitor,
However, yes, your knee jerk reaction should have been "Fine, go ahead"
You know he lives apart for months on end, leaving you fund less, then comes home & starts threats because the kids aren't in bed when he finally comes home from being out all day, having made zero effort with them while he has been home, other than buying a take away?
You need to tell the children. They must not keep on thinking he is a superhero