Found it walking into work. It was crumbled up in a tight ball. I actually thought it was liter so picked it up to throw it away. To my surprise it's a $50 bill. Just checked it and it's real.
I've found way more money over the years then I've lost. I'll keep an ear open if anyone lost some cash but with multiple shifts and 100s of people walking this area I doubt I'll find it's rightful owner but I will try.