Well for now is having the oposite effect, Argentinian are traveling much much more abroad than 1 year ago, in month June 30% more than the previus month, this month even more. source:
http://www.clarin.com/economia/cambiario-creciendo-cantidad-turistas-exterior_0_751125128.html
Is cheaper to go outside as the dollar you pay as tourist is the official tourist exchange rate and is a good way to do a trip and a profit if you have already house outside the country as many Argentinians do in Uruguay, Miami and Florianopolis, in the other side i just try paying with a friend arg credit card a PayPal account that i have in Ireland and it work without problem so i suppose nothing have change, the afip is just trying to scare people to not spend so much outside, because since the controls people have been spending 2 times more money outside than before, especially for the cc and the subsidized dollar rate, so for now is just the dog (afip) barking let see what happen.
In any case if you spend more than what you have declared (in white) you can have the afip asking where the money come from but that is nothing new, in any country if you spend more than what you have eventually you will have the tax agency on you.