Another year, another warbird gets fished out of Lake Michigan. This is far, far from the treasure trove you'd at first think. The Navy got some legislation moved through congress back in (as I recall) the sixties and now owns any recovered Navy hardware outright. It has a well-earned reputation for being a gigantic PITA about these things.
People fish them out of the lake anyway, so who knows? Maybe whoever's in charge of that department has lightened up.