Yes it does. In California, sexual harassment includes assault and that, most certainly, is a crime. So you could face both a civil complaint and a criminal charge (for the assault part of the harassment)

http://www.equalrights.org/publications/kyr/shwork.asp

Note this quote: "The conduct of the harasser must either be severe or it must be pervasive to be sexual harassment. A single incident is probably not sexual harassment unless it is severe. For example, a single incident of rape or attempted rape would probably be sexual harassment (it would also violate criminal laws)."