I really don't think your company is resposible for your bill at

just like you walk in a ER, did bouch of test, and turned out everything is OK, you still have to pay the bill, can't have the ER to share.

What if the nurse didn't call the ambulance, and you had serious problem later, will you sue you company? I guess so, and you would have a case.

The nurse did what she suppose to do.