Did it fly ok with an airtag on it? I tried sticking mine to the top and it would not fly right. GPS and compass errors and I actually crash landed just because It wasn’t very responsive. So I brought it down in a grassy part of the yard.
I don’t think there’s any issues with flying at South Park. My first outdoor flight last week was at sunny slopes in South Park. Nice open field with a closed road to takeoff and land from.