It’s not just the fact that he was falling in and out of sleep that makes this so damning, either. From TMZ:
[DMX] was popped in South Carolina around 3AM Friday after police determined he had been driving under the influence.
It wasn’t immediately clear whether X was busted for alcohol or some other substance — but based on the dash cam footage, it appears to have been for alcohol … and not just because X was a little sleepy.
In the footage, the cop asks X if he’s been boozing, and X says he had one drink — but later it sounds like he admits to drinking “4 or 5” (the audio is pretty bad). Despite the drinks, X insists he’s not too drunk to drive. The cop doesn’t buy it.
X was booked for DUI and hauled to a nearby station. He was released from custody roughly an hour later.