A happy ending
Since I had only been in two places I retraced my steps to no avail. The security guard told me that nine times out of ten people's wallets were returned. I went back to lab to sit and wait because I coudln't really focus on anything but calls I would have to make-cards I would need to cancel.
About five minutes later this nice woman calls me and told me that he son found my wallet!!! I ran over to her apartment and picked it up. I only had about six dollars in cash so I gave it to the little boy that found my wallet.
There are good people in this world...