Well, to say an entire turf might be a bit extreme. Some gang turfs can be pretty big, there's going to be some piasas selling, doesn't mean they have the entire turf to themselves though.

I could remember when one of the Eme Bosses of Florencia 13, Arturo Castellano, sent out a letter to his gang telling them to leave the piasas alone, that he's tired of hearing about them being abused, even told them to "get a job" instead.