Roosters wont sack him, the only thing they would be upset about is that the taxi driver and any other witnesses dobbed him in and they couldn't cover this one up.
If they did sack him im pretty sure they would want some kind of confirmation from the nrl that he would be de registered so that he couldnt play for another team any time soon.
Personally i dont think he is worth it, he was great last year but carries far too much risk !
I hope he is sacked, no one deserves that many chances after continually throwing it away and making fools of the hierarchy giving him those chances