Tire shop over torqued lug nuts (1969 Dart). Should I redo it?

I always take the wheels off my cars to take to tyre shop unless its my gladiator as not preasious about that. Funny tho, i got some walker evens bead locks cheap for it. Bloke said he had stripped a few threads. He had been using a rattle gun to do the bead lock bolts up on the aluminium wheels. I googled the torque speck should be about 20ft pound he had them at 70 lol Some people just shouldnt be allowed rattle guns