Cal Poly Campus Dining is helping bring The Coca-Cola Throwback Tour to Cal Poly on October 1. Stop by the University Union at 11 a.m. and enjoy free samples, Coca-Cola floats and fun photo opportunities. Bring some friends, hang out and relax! Coke will have their trailer at University Union providing free samples until they run out. The Coca-Cola Throwback tour runs from early September through late November, including approximately 10 campuses across the country, of which Cal Poly is one of.