Maybe you were referencing this and I'm just behind the times, but I read your comment and thought "surely someone has done this before..." And indeed, here's a

Maybe you were referencing this and I'm just behind the times, but I read your comment and thought "surely someone has done this before..." And indeed, here's a remix of the "wait" sound (it's not the only one, either - apparently remixing crosswalk noises is a whole subgenre of house music): https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/309098764&auto_play=false&hide_related=false&show_comments=true&show_user=true&show_reposts=false&visual=true# https://w.soundcloud.com/player/?url=https%3A//api.soundclou...