Kyra pointed out why this is a bad idea, for safety reasons. I'll just throw out that if you REALLY want to circumvent security then a better plan would be to meet her across the street, give her your spare key/fob/card, and let her go up separately from you, without talking to the guard.Maybe meet the gal at a sho[ around the corner & drive her into the building. Then no need for her to report in at front desk.
This involves you trusting her with your key, which is a small risk--but a better one than her trusting a stranger with her life. You can always change your locks...