That's probably just Scaremongering to keep people from abusing it too much while the Patch undergoes some tedious Certification by Microsoft or whatever they have to do to publish it live. They already patched this on the PC version yesterday... so yeah.
If I'd have an XBox and would ever consider buying this game in a far far away reality, I'd probably be doing this all day...
"Wow, some of you think cheating a glitch is OK. Um. If I install my car stereo wrong and it disables my door locks, its not ok to STEAL MY CAR."
WTF is up with these marketing people and Stealing Cars? What next? If people are talking bad about their games and platforms it's like making someone pull down the window with a gun and jacking their car?
And if that'd happen he could sue the radio-company... so basically himself, or Activision?
Seriously this again reinforces my decision of never ever buying a XBox and staying with the PC, cause I don't like obviously mentally deficient people like this clown telling me what I can and can not do with my hardware or in a game I've bought cause he had a bad day...