Yes Carthage is a dry campus but the school will let students get away with things if they are supporting a athletic team. Your not gonna get nearly as many fans at a baseball game as you would at a football game. So when you have an extra 30-60 fans yelling, screaming, and drinking out in left field the school doesnt seem to mind. Now we all know that isnt right but as students we will take what we can get 
That's gonna be true for a lot of DIII schools, especially in the CCIW. Admin kind of turns a blind eye to students having a few beverages and being loud in support of their school which I think is a good thing as long as the students don't cross the line. Definitely can add that "homefield advantage" that the athletes, in most cases, appreciate.
Carthage has always had good support for their baseball team. It doesn't hurt that they are pretty much always in contention.
I can't remember if it was better or worse that the wind was howling out to left center at 40mph...the wind prevented whatever was being yelled from being heard, but that same wind carried a lot of Carthage fly balls over the chainlink.