I've had luck with using the short term parking garage as the hand-off spot. It takes a little bit of coordination and knowing the layout well, but it's worked for me several times.

I also find that acting helps a bit as well -- act like they're a friend you haven't seen in awhile. "Hey, how are you? Good to see you again!"

We should all take note that the taxi/bus mob in Orlando is why there isn't rail service between the resorts & airport.