No doubt the FIA will do nothing about this blatent attempt to manipulate the result.
As Ferrari obviously checked with FIA before they did that (at least according to an interview Domenicali had with German TV), there will be no consequences.
@Geckothan: I'm not Vettel's biggest fan either and think he's severely overrated, but you come off as very petty since all you seem to be able to do is harp on him.
If he was half as bad as you make him out to be, he wouldn't be able to compete for the Championship no matter what car he sits in.
Would Alonso and/or Hamilton beat him if they had the same car? Most likely, but I doubt it would be quite as clear-cut as you make it out to be.