Good Luck... I have actually had somethings tracked down, but only when I realized it quickly and tracked down a live person at the location to physical go look. Once it is in the system, nope!

Actually, I know some people at AA and they do sometimes hang onto things they find. Most things make it into lost and found, but if there isn't a name on it then good luck. My opinion, things that are really valuable or with you name might be returned. A friend had a 2.5k diamond ring found and returned. So you never know!