My boyfriend recently got revoked from pre release and I have 30 days to get his belongings I was just curious what happens to his stuff if I do not pick it up.

His belongings are boxed up and kept in storage. If you didn't show up they would be there when he got released. They want people to collect the goods to keep from having an overload of stored boxes for inmates. There are other instances where the facility (federal) will ship the property to the inmates home address.