I am also in a HOA that is anti-chicken. It didn't help when I attempted a coop with some mis-sexed birds. (Yes, roosters crow ALL DAY...)
However, I am thinking, I am right next to a high school, and I will check if this school has a 4-H Club. My son is in elementary, but maybe I could do some sort of maneuvering with his school for an educational use. My yard is big enough to keep a coop down near the back of a large backyard and away from prying eyes. I never had any smells from the 8 birds I originally had. But 6 of them did turn out to be male...which in turn turned into really good soup stock.