If I remember correctly they said it was nationwide. I did call the SC around noon and they still did not know why deliveries are on hold. I'm hoping my Sales Specialist calls me tomorrow with an update.
I had the same thing happen. Our Gravity delivery was scheduled for 4 PM on 8/16 and I got the call around 10 AM the same day saying there was a hold on all Gravity deliveries. They said they hoped to resume deliveries this week.