Of course not. Did I give the impression I would?
I am an employer. I hope I am successfully balancing my business's needs with consideration for my employees I always hoped for from those who've employed me in the past. This employer's problems stem from his apparent unwillingness to do so.
I see a huge difference between a legal obligation and a moral obligation. The employer should have no legal obligation to keep a waitress beyond when she is wanted, and it's the legal obligation that matters in court.