Working on Sunday sucks, especially when you don't need to

I did my daily walk earlier and I saw something that I felt should not have been happening. The City of Roanoke was having some of it's workers tear up one of the streets to get it ready to be repaved. I don't have any problems with that, but I do have a problem with that being done on a Sunday. I would think that Sunday would be the one day the city wouldn't make anyone work unless it was one of those kinds of jobs where you needed people on the job 24/7. It's not right in my opinion.