Yeah, I don't know what the drink driving limit is in the US (but if it's anything like their speeding laws it's lax), but here I have no sympothy for anyone who gets a DUI, even at the lower limit you have to be uncomfortably drunk to be over.
Selfishly, he was lucky that no one was seriously injured because a lot of countries wont grant visas for someone who has a conviction and that will limit his ability to play international football.