I am renewing my TTP/Global Entry membership and am "conditionally approved" but am required to do the interview. I made an appointment at SFO in February but got an email the other day with the following: "Instead of scheduling an appointment at a Global Entry Enrollment Center, you have the unique opportunity to interview for Global Entry when you return from your next international trip." SFO is one of the airports that offers this. The email just "Follow the signage directing you to CBP officers who can complete your Global Entry interview during your admissibility inspection."

I am returning from Mexico in January and clearly this would be a big help. Has anyone done this? Is there really adequate signage? Does it take very long? Any intel appreciated.