That's my point too, how will it be enforced. When girls are coming up to Austin all summer long for orientation, there are parties all week, sorority girls are there, freshmen are there... how is that going to stop?
They can do away with the contacting rushees and inviting them over, but they are coming to Austin anyway. And, there's always the "Susie Q is coming to stay with her active sister/neighbor/bff from home and bringing a few friends with her. Will that be outlawed? If so, how will it be enforced. I guess if houses start turning in other houses any time they see what they feel is an infraction, which could get ugly...
On the bright side, they can use the money they spent on the summer rush house/condo to pay the upcoming fines