From the information presented in the articles pertaining to this particular clash, I feel it is Afridi who has behaved out of line and should be facing disciplinary action if any. Whether or not Inzamam likes it, given that Younis is the officiating Captain, his (Younis's) instructions should be respected and obeyed. This should be the logical conclusion and one needn't be a supreme court judge to arrive at that.
However, since exactly the opposite seems to be happening, this version of the incident may not be correct. There has to be more to it than what has been yet reported.