Other mistake: Near the beginning, Scott and Charlie are flying in the sleigh down a road next to a truck. During the entire scene, the truck driver is constantly jerking the wheel to the right and left yet the truck remains in a perfectly straight course.
Other mistake: When Santa falls off Scott Calvin's roof, he slides in a straight trajectory that lines up just off center of the front door, meaning Santa should have fallen smack down on the snowless concrete walkway, not a few feet over onto the snow-covered lawn.
Other mistake: A Federal Express driver delivers hundreds of boxes to Scott Calvin. They contain the names of all the children in the world. Scott opens a box and picks up the top page and begins reading the names. The second page in the box is identical.
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