Rockstar has a problem with some "hot coffee"

Looks like there's a mod available for the PC version of Rockstar's Grand Theft Auto : San Andreas which adds explicit sexual content to the game - and it's causing quite a stir. Rockstar states that the content is added to the game by the mod (the developer of the mod, Patrick Wildenborg, calls it 'hot coffee'), and is not existing content that is unlocked by it. Here's the word from Rockstar's official statement - "So far we have learned that the "hot coffee" modification is the work of a determined group of hackers who have gone to significant trouble to alter scenes in the official version of the game, in violation of the software user agreement, hackers created the 'hot coffee' modification by disassembling and then combining, recompiling and altering the game's source code. Since the 'hot coffee' scenes cannot be created without intentional and significant technical modifications and reverse engineering of the game's source code, we are currently investigating ways that we can increase the security protection of the source code and prevent the game from being altered by the 'hot coffee' modification." Of course, no steps taken by a software developer can completely kill such modifications - but Rockstar is smart to clearly state that the questionable content was not pre-existing within the game. Now, can they prove it?