So, this happened:
Of course, it was the exact tire that had the last nail… And apparently since it was close to the edge, the guy said there was a chance the repair might not hold and it would split. GRRRRRREAT. How am I supposed to feel comfortable driving on that?!?!?! The tires are original and they are 2-3 years old…so we talked about getting new tires. And then as fate would have it, Costco was having a sale on Bridgestone tires, so off we went and $800+ later I feel safe driving again.