A while back we left a carry-on curbside at JFK. No way to contact lost and found (AA) via phone. I had to be at JFK a few days later and decided to drop into the lost and found and I noticed the bag as soon as I walked in. It even had a phone number on the label but they claimed they tried once and nobody picked up. While a camera is different - I would not be surprised if it is just lying there.