Spotted: Girls huddling around ice cream cooler

Spotted: 3 girls huddling around the ice cream cooler at One-Pump Valero. Also 1 boy.
Facts: It was a Monday night, about 9:30PM CST. It was approximately 39 degrees Fahrenheit outside.
Special notes: One girl in a white beanie broke from the group to get a bottle of red wine. The group settled on a half gallon of Blue Bell’s Cookies and Cream ice cream after much debate.

Why are these 3 girls and their male┬áchaperone roaming the ‘Cullough on a weeknight? Why are they forging for ice cream and wine at One-Pump Valero?