This is more a Florida phenomenon rather than an overtly mafia one.
Exactly, Mickey.
It's commonly referred to as "Spanglish," and you see it just about anywhere there's a large Latino population in America. From New York to South Florida to Arizona. My Italian is pretty good, so when I'm confronted with Spanish speakers who speak little English---and I see it quite a bit here in the Bronx---I usually answer in my own hybrid of Italian/Spanish/English. And I almost always get my point across.
I seriously doubt that the Trafficantes came up with a secret language
.