It appears to be a real story according to the "report" and the picture. I don't have a problem with that, Pierce seemed to have a good time in Miami by playing poker and drinking a little bit but he didn't spend the whole night awaken and did say that he had to get some rest for the game, which is on the evening of the next day so I don't see why we should criticize him, I think he just had a good time. And it's true that, considering all the other "temptations" in Miami, he was reasonable.
By the way, I find it interesting to see how the players can easily be "tracked" thanks to the new multimedia, with Internet, etc. I remember a recent similar story with Turkoglu, although it was worse because he said to his team he was sick or something like that while he went partying in Toronto... but got "busted" by some fans.