our meters are seldom in the side walk and I do hate those. why? often heavy lids, concrete or fiberglass or metal ones that are hard to get off. or they are filled with mud and dirt and annoying to get a read. we could if its in the right of way, spray. i dont think we can simply enter a yard to spray without permission. if its utilities the utility workers can acess their property without permission. this i know from run ins with people who found out we will cut power,,,it applies to all utilities.There were pictures of workers in other countries walking down the street spraying stuff to decontaminate their city. I wonder how effective it was?