On weekends…since virtulay every weekend is a festival weekend…Metra and BNSF Cops taking all the beer and booze they can even unopened and stockpiling it for a labor day bash!
Your cynicism is showing. Having ridden late night trains home from work when Chicagofest was closing for the night, I will say that the policy is a good one since it helps to reduce the number of drunk and disorderly riders.