Thanks everyone for your thoughts and advice!
I just got the call from the vet... PHEW
She said everything went well and he did great! She didn't give me many details besides saying that his tooth had a very large root and she was saving it for me to see it, lol, and asked that I keep an eye out on the adult teeth and schedule an appointment so she can make sure they are coming in correctly.
She said I can pick him up after 3pm, but I think the earliest I can leave work is at 4pm. I CAN'T WAIT!!!
I'll update again after he's home again