After further reflection (and sleeping on it) I've decided there is no reason for STBX and I to see one another, or speak to one another, any time soon, unless there is an emergency.
I'll send him a written list, and ask him to let me know what day I can come over. If there is no response, I'll petition the court for a writ that will allow law enforcement to go to the house with me. For 20 minutes.
Doesn't matter. I have everything I need. Some sheets would be nice.