They'll give you plenty of work in Torrance, Inglewood, Compton, East LA, etc. I think you get the point.
Last year when I was working 60 hour weeks as a tech for CVS they finally cut me off from my 12 hour OT shifts in Orange County after a few months so I was forced to work in Long Beach. I got berated for 12 hours OT in the Irvine area but they were more than happy to throw me to the Long Beach area, and I know there were shifts more north if I really wanted them. Which I didn't.
Although now I notice that you're an intern, so the whole process is completely different for interns. I know that RPhs and techs can get tons of OT in LA if they want it, but I have no idea about interns. I wouldn't expect it to be as readily available but I don't know.
About six months ago. It was at CVS #1764 in Mission Viejo at Alicia and Muirlands. They fill about 1000 scripts/week and had their entire staff walk out except for 1 staff RPh and 1 tech. It was a gravy train for about 12 weeks.
I made a ****load of money working there hehe.