Hertz started this service about 15 years ago at certain airports. I remember they offered it at DEN when we had 4 guys and golf clubs, so it was really helpful. Unfortunately, they service was killed by the airport authorities who were going to the "shared bus" concept.

I really liked 5-star, in the old days, where they would have your car waiting at the curb, outside the terminal, for pickup. That one ended also, I think.