My son is 16 and we have VIP tickets to Tech N9ne this Saturday. He hasn't gotten a driver's permit or a license yet. I'd there anything else we can bring or do to prove he is 16? He doesn't have a state ID yet either.

You have three days to get a valid government issued ID. I strongly suggest you get one. They are very strict on accepting only government issued IDs here. Without it, your son will absolutely be turned away, from entry. Sorry to be the bearer of bad news. Enjoy the show !

Passport? You could take a picture of his birth certificate too

A school ID should work but im not sure I'd take a kid to that show!