Yeah, they probably were just being cautious with what was inside the box. They probably scanned the contents of the box, were unsure, so they checked. Like I said, I wouldn't be too worried about it.

Delivery companies work on Sat. as well. It could be overtime for all you know and they coould have been out early this morning to get work done earlier.

Right now is the start of the busy season, so they were porbably just doing a bit of early morning overtime.