Law of Bailment
Google along these lines
http://www.ehow.com/about_6296031_california-bailment-law.html
http://fisher.jsc.vsc.edu/htm_law/cl17_bailment.html
California follows three-tiers of bailment responsibility. In your case, the bailment was for the mutual benefit of you and the hotel. In such case, you can sue in small claim court by alleging the hotel failed ordinary care.