Plug the tire and be on your way...., if the tire is still good, why would you not ride on it?
I've done this many times. Tire wear or major damage is why I change tires. If you patch or plug the tire and it leaks, you have a flat NOT a blow out! If a tire is going to blow out it makes no difference if it is patched or plugged. You stated this was a nail and not a cut tire. A cut tire should be replaced, period.
They being said, once you fix a tire you should keep a close eye on the preasure for the first few rides. If you feel better with a tube, okay. I really don't like running tubes in tubeless tires unless it is the only option at the time. If you feel better replacing the tire do so and be done with it.
Anyone riding has a chance of a blowout on brand new tires. While rare it can happen and is usually attributed to over/under inflation and a square edged bump like a pot hole or curb. I've experienced a rapid deflation from a torn rear tire. It was no fun but still controllable. I had hit a piece of steel at 65 mph. Not quite sure why the front didn't tear but the back did. The tire did not blow out but it did loose preasure fast. Just my opinion and experience.
Do you just use one of those standard tire plug kits you can pick up at O'Reilly's? I've got this one
laying around, never opened. Would that work to plug w/out patching?