I would add to my comment above that I wouldn't be surprised if Cristina was the one who suggested this response to the police strike. It seems much more like her style of hardball. Alberto is so kind and calm and conciliatory, too much so for our good. This is Cristina's style, "you mess with my government, bueno, y voy a romperte el culo!"
The hardcore Macrista wing of Juntos por el Cambio backed and encouraged this police strike, (rebellion is a gross over-exaggeration), and now she's making them pay for it. This isn't entirely fair, as Larreta represents the moderate, cooperative wing of Juntos por el Cambio, but politics is never fair. And Cristina didn't rise from being the daughter of a bus driver in the most sparsely populated province of Argentina to the Casa Rosada by being sweet and playing nice.