I feel like this happens at least once a month. A rider would leave something in the car, usually a phone or wallet, and when they contact you, they say:
1) "I can't live without my phone. I need it tonight."
2) "I am at locatio XYZ. It's 20 miles away."
I appreciate Uber enforcing the $15 flat fee (since a few years ago), but I fell like that really doesn't cover the expense. The time lost and the miles driven (considering gas) would put me in the negative territory.
Why not make it simple? The passenger needs to pay time and distance for me to get there? Just like if I were to drive a person. It seems fair to me.