Bio not provided
"A 20% gratuity will be added to your fare, plus a $1 booking fee. This will be done automatically and charged to your credit card, exactly like a standard Uber ride." I would never prematurely approved 20% gratuity to an SF taxi driver. I'll stick with the current SF taxi service, get what I pay for, keep my expectations low and tip accordingly (good, bad or horrible service)
It still wasn't clear why you're doing this?
2 years ago on TAXI is arriving in San Francisco