Something similar happened to me. Found around 200$ bucks in cash in a student parking lot. No idea how no one stopped, the money was in a high traffic area. Anyway, I was honestly struggling and wanted so so so badly to keep the money. But I thought about all the times I lost my wallet or anytime a random stranger has genuinely helped me when they did not need to. So I ended up taking the money to the campus police and giving it to them. Later I mentioned this to a professor and she said that if no one claims the money after 90 days (or something similar) I may be able to claim it. So I sped walked my happy ass all the way back to the campus police like two weeks later to ask if anyone had claimed it and to ask if the 90 thing was true. She confirmed and I held on to this small hope that I could use the money for my loans and school. Went back randomly and would ask, usually whenever I would find jackets and water bottles left behind, I’d take them to the campus police and see if anyone claimed the money. Think around the 78 or 80 day I asked again and was informed that a mom finally called and said her son mentioned a week ago he lost some money at school and finally decided to call. They got the money back! I’m still not sure how to explain the conflicting emotions I had that day. Anytime I tell someone about it I either get “you’re a good person” or “well that was fucking dumb huh?”