Around here if you want anyone to come out and turn the valve off or on its an $85 trip charge.
First time I ever turned the gas off I found the valve would just keep turning in circles and never stopped. I then had to go in the house and light the stove and wait a few minutes to see if it burned up what was in the line or not. When it didn't go out I'd go back outside and turn the valve a little and go in and check again finally getting it to off. Moved the pipe I needed moved then put on a shutoff valve at the wall and went outside and turned the valve a little at a time until i got the stove to light again. Figured out it was a 1/4 turn valve without a stop.