Several cities in the US are way ahead of you. There are cameras and microphones on LED lamp posts being used for "big-data" whatever that means. Here [1] is just one of the cities and I suspect that once the lawsuits started being flung the other cities buying these likely kept it quiet. There are no federal or state laws banning these so it is up to cities to decide if they want to ban/permit this data ingestion. There are a myriad of other articles if one wants to go down this rabbit hole.
[1] - https://www.smartcitiesdive.com/news/san-diego-faces-lawsuit...