Not sure why you would not abide by what CM asked you to.

Was it really that big of a deal why he couldn't ride with his dad and let someone else in line have the car he was going to ride in, therefore moving the line a bit faster in the process. Imagine if everyone decided to ride by themselves.

Perhaps the CM knew something you didn't -- or was asked by his/her supervisor to not let rides go with just one rider.
Oh well, I guess this is another example like I have read many times on these threads how some folks feel it is o.k. to do what they want, and not abide by what the CM's ask them.