Again, he just sounds like a spoiled brat who doesn't want to play nice. Let me ask you this...pre-crisis would he have acted out this way?
Do what feels right to you. I would not play his game of begging and begging for your belongings. I just have this feeling that he wanted to see what your reaction would be. The more you beg and/or react to his nonsense, the more he feels like he is in control and has something to hold over your head.
As DnJ stated, you can always speak to your lawyer and see what he/she has to say...but the bottom line is this...just how will they enforce the law and get your belongings back? You will need to ask the lawyer this. If your h is not willing to return them on his own, will an officer(s) go there, knock on the door and ask for them? If your xh receives too much notice of their visit, he may just hide or not be home.
When you have a moment, please sit down and write up some questions to ask. You need to have some idea how this will play out. Some MLCers do not care what the divorce decree states and will not adhere to the law.
Let us know what you find out and how you are going to proceed. This is all very frustrating for you. I am so sorry he is still out there in La La Land.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.