Audio problem: Amber calls House and he hangs up on her. Her phone makes a beeping sound as she presses the button. Her phone is an I-phone, which doesn't beep like that.
Continuity mistake: After Amber hangs up after trying to call House, the angle changes and suddenly her phone is nowhere to be seen.
Answer: She would have No Reason to know it belonged to the CIA. If she did know he went off in the helicopter, all she would know is that it wasn't an ambulance helicopter.
Greg Dwyer