Jack said he had bill of sale from bank for personal property.
That is buried in a bunch of ftard posts.
With bill of sale get title.
With title in Jacks name, law enforcement might care enough to go talk with thief. Who will then move it to some un locatable place.
If jack retrieves it in a covert operation and it goes smooth- law enforcement might worse case give two trespass tickets.

If it turns into a shiet show, then it will all come down to who the officer or prosecutor liked.