Help! Need work like yesterday in San Diego area...agencies not having work?

Ok, I arrived in San Diego almost two weeks ago with no job (I know I know) and immediately met with those at the Maxim Healthcare office in San Diego. I thought they would have me available to work in two days as they insinuated. Here it is a week and a half later and just now after they say that tomorrow I can start working. Of course they don't pay daily until the first live check
I am also working with Wesley Medical Staffing for whom I worked with while I was Las Vegas. They do pay daily but it's almost been a week and every day I'm cancelled. I've been double-booked, booked for different shifts and still nothing. I know it's slow at this time of year (everyone says that) but I am literally going to be starving in a few days. I'm trying to remain optimistic but it's hard.
Anyone have any hints? or advice? Wesley seems like a smaller outfit than Maxim and I hope that when I am able to start putting myself available, they will come through. PLEASE HELP!

Zach