Her community is not guard-gated, but it's extremely snooty/snobby. A number of years ago, before the weekly gate-code changes, the HOA started doing annual code changes on Halloween. Why Halloween, you might ask? Because the service staff of the community (landscapers, house cleaners, etc.) had the audacity to bring their children/grand-children to the neighborhood to trick-or-treat. Residents felt the service staff was just trying to guilt them into giving candy. Keep in mind, all these residents are multi-millionaires, mostly retirees, and they were bitching about having to spend 5 bucks in candy to make children happy.
It's an over generalization. The other way the story goes is that the big house with the long driveway in my neighborhood is the one that gave out king sized candy bars on Halloween.