if i were the cops, i'd tell the family which neighbor complained so they could harrass them for the rest of the summer. or sell them a cup of piss instead of lemonade.
good for the city to respond the way they did.
i wonder, with a temporarary permit, if the kid could register her name with the state as a non-profit and apply for grant money. at age 6, she could have a "business training seminar" for other children so they all learn how to make change and sell lemonade.