While in San Francisco I decided to return the car before the agreed date and in the center instead of the airport. There was no problem, I was credited the difference between the days and the cost of moving the car to the airport
You should have warned beforehand, surely you can and it is likely that they want to charge you a tax, previously check how much you get an uber to the airport so that it does not exceed that tax. Greetings.
Thanks! Your answer is awaiting moderation.