Well, I am sure that prison break star will be doing some time in a real prison really soon!
According to TMZ:

Five eyewitnesses from the party tell TMZ that Garrison arrived at the party with Setian and two women, whom he had met earlier at a gas station. They say Lane brought a bottle of Grey Goose vodka to the party and unveiled the bottle to the crowd with a flourish. The gathering was described by several attendees as a "kick back of around 30 people." The eyewitnesses, all acquaintances of Setian, say that Garrison then started taking shots of the vodka and offering shots to other partygoers. Several eyewitnesses also said photographs were taken of Garrison consuming alcohol. [
TMZ]