Don't be so sure, Mark. We had a long-time client in Venezuela who was having to buy dollars on the grey market just to pay their invoices to us (our contracts are either in USD or EUR, and they couldn't do Euro's either). We had to finally cut them off after being six months behind in their invoices.
The fact is that Dolara's influence is a shadow of what it used to be, and Venezuela is now run by an ideological dictator who seems more than willing to cut ties with the US. He's already got money from their oil reserves, so what exactly does AA have to offer him that he can't get elsewhere, i.e. from Mexico or Colombia?