If anything a patch, plugs suck and I would never trust it again when pushed hard. Like the other member said they are pretty well worn anyhow, replace and drive hard with confidence.
I just pulled a drywall screw out of my new rear Pilot SS and plugged it myself. I drove 60 miles to an autocross and back, and the plugged area still looks great. I've plugged many tires over the years without any issues. YMMV!