Officially: No repairs permitted on Run Flat Tires. Tires can be sent to Bridgestone to be reviewed under a form of X-ray inspection to see if it can be repaired. If you're going to go through that hassel, might as well as replace the tire (the car sits on jacks while you wait for the results?
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Un-official: No plug. If it is to be repaired, it must be patched from the inside.
In your case, as everyone has said, it looks way to close to the side for any type of repair. Never give the tire to someone that hasn't worked on runflats before. You don't want to be the guinea pig for the shop.