Sorry, just to clarify - literally all night? As in, someone could drive up there at midnight and after to pay respects?
All night.
People are now starting to go by the casket and pay their respects.
You have to go to Moorpark College to park and ride a shuttle from there. There are very many people waiting, and the freeway may be slow (according to the speed map, currently less than 4 mph near the Madera exits).
Details:
http://www.freerepublic.com/focus/f-news/1148751/posts?page=14#14