Is 2062 still valid after PCS?

Is a 2062 for a barracks room (or anything) still valid after a PCS? I was previously living in another unit's barracks because ours were full and when it came time for clearing there was a lot of confusion with the other unit. Their barracks manager was on leave, and they did not assig someone to fill in for him. Ultimately, they took me out of the Enterprise Housing System so I could clear but did not give me my hand receipt back. Now 2.5 months later they contacted me saying I did not properly turn in my barracks room, and I may be responsible for cleaning costs and a new key because I am still signed for it. Is there any action they can take against me?

EDIT: The 2062 would be over 2 years old if that matters.