I went to Arlington office on Wednesday, October 27th early in the morning around 7am. There were maybe 30 people already waiting in front of the building before me. Normally office opens at 7.30 if I am not mistaken. I was waiting not more than 15 minutes when immigration officer showed up and started asking people if there was anyone having an appointment. He came to me and asked the same question. I said I did not have any appointment and that I came for interim EAD. He told me that everyone has to have an appointment in order get an interim EAD.
I had my interview at the Dallas DO today May 14th. It went very well. I was very nervous about my extensive travel over the past 5 years. I had some 800 odd days of travel that included trips to a lot of countries in the world. But none of my trips was over 6 months, the maximum trip length was 110 days. I was working for a US company as a contractor and did have a letter from the company for the reason for the numerous visits.