You don't asctually ask a question, but the question is presumably "what can I do about it?"
To the extent that the problem is now resolved, not much except to document your non-agreement to the kids being returned late in a letter or e-mail (in case it is later argued that you agreed to it) and request that it never happens again.
If this is part of a larger problem of non-compliance with court orders, consider filing a motion to alter the existing custody and visitation terms. For background information and materials, click here. Really, however, you would probably be best served by scheduling a consultation with a qualified family law specialist to go over all of your concerns and get specific advice as to your options in the particular circumstances of your case.
Answered on Aug 07th, 2016 at 2:49 PM