Something tells me this is the same case that has caused all the stadiums to actually enforce the 4 hour rule, where you can't get into the stadium to tailgate until 4 hours before kick off.
As everyone knows, we liked to go up to the games really early & get our "spot" on the parking lot - usually around 7:30-8:00. About 1/2 way thru the 2003 season they stopped letting people in before 9 AM & the reason was that some guy at Giants Stadium was allowed to start tailgating at 10 AM for a 4 PM game. He hit & injured/killed (we all heard versions of the story from other people) someone after the game & when asked when he started drinking that day, he told them.
So, ever since then, we can't get into the stadium parking lot until 9. This "rule" is of course not enforced on non-stadium parking lots (there's a lot of them around here) so as we sit in line waiting to get in so we can get our "spot" we get to watch people on the private lot next to the entrance set up their gear, start drinking & eating & having a gay old time.
6 beers at once is against the rules (I think all of them are 2 beers per person) but it's also a lot of beer for one guy to carry. Ever try carrying around 2 beers during a game where 50-80k people are? At halftime? You spill a little bit
6 beers? Impossible.
Even if he did swindle the beer guy into selling him 6 beers, it's his fault that he got drunk & drove home.