She may try going to the United Global First Lounge and asking politely if she can be allowed in; There's a chance they'll allow her in because she's on a paid *A F ticket. If that doesn't work, she can try the 2 United Clubs (International Terminal and T3).

On a related note, you can check the United Club Meet-Up Thread to see if someone will be around then and edit the wiki to put your daughter's timing there.

Best of luck!