**Update**
I just looked at the tire again in broad daylight (just had my garage lights last night) and there is definitely
no hole all the way through (and no air leaking)
I don't know exactly how thick the tire is but the hole can't be any deeper than 1/8 " . So I'm assuming that I'm cool. Just for safe measure...i'm going to get some sort of tire sealant to fill in the little hole. Does anyone have any recommendation for this?
Thanks to everyone for any help.