It's a Canadian company, so maybe you paid in Canadian dollars?

That's a reasonable price for a hot meal that is predictable and produced under supervised conditions.  Some Californians are upset about the $20 hourly minimum wage for fast-food workers.  They figure, if H&R Block can do your 1040 for $20, why can't you get fed at a drive-through for that much?  Others know that In-N-Out is worth whatever they ask.