Baltimore

We received notice to come into Baltimore office for EAD 6 days before appointed time. Both were out of town on business on day of appointment, so followed instructions of informing them in writing and requesting new appointment date.
Didn't hear from them for more than 90 days, so made appointment on INFOPASS.
Arrived at 9am, called within 5 minutes to window - showed EAD application filing receipt and told to wait. 2 hours passed,

Went around 9:30 am, approximate wait time 45 mins, the lady on the window asked for the notice of action for the actual EAD renewal filed and the new form I-765. Submitted the form, she told the notice will be mailed to you and it might take 30 days to get notice.

Recently I have been to Baltimore District Office to collect my interim EAD, I was told that if INS Processing Center(Vermont) requested some additional documentation, that requested documentation should be sent to Vermont(that information should be updated in INS database), then only they can issue interim EAD. They are taking 30 days to issue Interim EAD.