Part II. Almost from the beginning, city leaders tried to regulate public use of the mall with permits and fees required for organized activities. At times, the regulations escalated tensions between city government and citizens trying to enjoy the mall, although the city was not able to devise an effective method of resolving tensions. Social activism had existed in Eugene prior to the mall's opening. People angry about the Vietnam War gathered on the mall. The mall was an ongoing location for counter-cultural activity and retail customers experienced unhappiness at the widening generation gap. When Springfield Creamery owner Chuck Kesey, brother of author Ken Kesey, brought the Grateful Dead to the Oregon Renaissance Faire to play a benefit concert for the creamery in 1972, to some the Eugene Mall seemed like a good waiting room for the next concert. That concert did not occur until 1982. 
(Wiki summary)
And so it goes.......