McDonald's

My Family and I went into this location for some lunch after a nice visit with relatives. Unfortunately while my husband was eating the last of his french fries a broken off acrylic nail fell out of the container. Since now we are half way through our meals we decided to stop eating and speak to the manager on duty. My husband politely pulled the manager off to the side to show her what he was just about to eat. She was extremely apologetic and grossed out. My only issue is instead of refunding the whole $23 meal in which we all had the contaminated fries she only refund $2.43 for his container? We didn't even get to finish our meal due to the thought of the contamination. Obviously proper sanitation and food handling procedures are not being followed correctly. I believe that according to the health department acrylic nails or nail polish should not be wore while handling food and all employees should be wearing gloves at all times while in or around food handling areas.