Tesla has this statement about its valet service:
Tesla Valet Service
Tesla is putting in place a valet service, so that your car is seamlessly picked up and replaced with a loaner and then returned as soon as we are done. There is no additional charge for this.
Then there is a price of $100 per ranger home visit listed on the same page. Why would I use ranger service when I can use the free Valet service?
I'm probably overlooking something or not fully understanding it.