If your car is deemed to be in a dangerous positon they are allowed to move it back onto the track. Since being stuck in the middle of a lake is probably not very safe I think they will all get away with that. The only question mark now is if Mclaren will be punished for the dodgy pit exit.
Crazy race, might need to watch it again to understand what happened. Unlucky for Hamilton, took the wrong gambles, but thats what happens when your a rookie. Great racing though, it shows that it is very possible to overtake in F1, just remove the bloody pitstops so people are forced to do it!