Transit Visa

I went for my stamping to Nogales on Dec 19th. I stayed in the Best Western in Nogales on 18th night. On 19th morning, I parked my car at the border and took a cab to the consulate. I got to the consulate by 7 am and was 5th in line. At 7:30 , 2 girls came and verified our forms. All forms DS 156,157 and 158 need to be filled out by both boys and girls. Then they let us enter the consulate where our forms were reverified and they attached the photos to the ds 156. Bring atleast one photo to the consulate although they take their own photo which will show on the visa. I finished biometrics before 8. Then you have to wait for the visa officer to interview you. I was going for my H1 extension and I had not changed companies. VO asked me about my education and when I said I had a US degree he wanted my degree certificate. I showed him the degree certificate and he said your visa is approved. You can come back tmrw at 3pm to collect your passport but you can try today itself. In most cases it will be ready by 3pm today and gave me a slip. Did some TP in Walmart and the Nogales mall and went back to consulate by 2:30. We have to wait again inside for 15-20 mins. I was fortunate my passport was ready the same day. As soon as I got the passport, I took a cab to the border.But I was delayed for over 2 hours to get a new I-94.