Visible crew/equipment: When the Elves fly off the roof with Charlie, a wire aiding in their takeoff is visible under one of them.
Visible crew/equipment: Near the beginning right when we see Charlie in the back of the car, the camera shadow creeps onto the vehicle as its moving.
Answer: The elf on top probably ignored him as he was in no position to answer him. The elves seem to have a stratified society [i.e. some make toys, Judy provides food/beverage, some do security etc.] so it was most likely his job just to punch in the code so the sleigh would descend. With Bernard being the head elf, and probably the most knowledgeable on all things Santa related, he would be in the best position to talk to Scott and answer all of his questions.
Invader_Gir