I've been reading to small print and got a little bit of a shock. For Dial7:
Once you have safely landed and retrieved your luggage, please call us with your confirmation number to notify us of your arrival. We will direct you to a curbside meeting point located right outside of your terminal's baggage claim, where your driver will meet you within minutes.
I was under the impression car services always meet you inside the airport with a sign with your name on it?