When I made my ressie and joined the Emerald Club, they told me that with being a member all immediate drivers that reside within your household are free. You have to have license to show that the address is the same as the reservation holders address.
No, there is no charge if the other driver is your spouse or immediate family, just show that license as well as yours when you stop at the booth.
In fact, last year we got a PT cruiser from the Emerald aisle and I was having such a hard time finding the lights and various controls on our way to the booth (kept putting on the windshield wipers) that my husband told me to stop and switch. HE actually drove the car up to the booth and out of the garage, even though the ressie was in my name. No problem!
Same with us. The ressie is usually in my name and my husband drives it out of the garage. We've never had a problem. I do believe we've had to show his license a couple times, but not always.
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