At least in the pastUber didn't use the needle GPS coordinates, it picked the nearest street address from the pin. Fun times were had, when trying to get a pick-up from an outdoor event.

I broke my foot a year ago and spent three months on crutches. For a lot of that period, crossing the street or walking down the block was a meaningfully difficult task for me.

Whenever I called a rideshare, I very explicitly set the needle to exactly where I was. It's amazing how frequently I'd have a driver park across the street and a block away, and get angry when I didn't come to them.