How to shut off water from city meter with no customer shut-off valve
If you do not have a shutoff below the dirt level or at the house you can pack dry ice around a short section of pipe and that will freeze the water and make a plug .
I have done this with galvanized and copper never tried plastic . Only an inch or 2 being frozen will plug the pipe and not break it. I have had to do this when I had to replace the main shutoff valve.