So, the dumbasses at my local Department of Transportation decided that it would be a GREAT idea to close one of two lanes of a major freeway at the beginning of rush hour so some guy could walk around taking pictures. Traffic was stopped for 4 miles and getting deeper. This is the second time this week!
Given the context youve provided and what little i know about the subject, its likely he was there to inspect all the work done and make sure it was done well. Better to close that one lane now then spend another ten years with that lane closed right?