[Fuzzyelvis]

That policy is for ages ago mate. If you forgot to do that than don't cancel the trip and move around bit more for whatever time you think is good. I know it's risky and you could get deactivated by uber if you are consistent but that's the only way to get your fare from them.

If you arrive and forgot you can drive back the same way and the route will be the same. But of course it's extra miles.