Imo, Ramona was doing Lu a HUGE favor by giving her the lower level, and Lu was too clueless to cash in. Ramona said the lower level has it's own private entrance. It's so simple,...Lu, being "sober", excuses herself to go to bed earlier than the others, then sneaks out the lower level entrance, has an Italian friend to come pick her up at the end of the driveway, and hits the bars. She just needs to be back in time for the breakfast shoot, and can claim she thinks she's coming down with something (especially with Tinsley's situation) to explain the rougher than usual voice,...and everyone's happy. But, no, she couldn't be cool. She had to be uncool.