If it was coolant you would notice loss in radiator level. If it was steam, you would see water around the pipe. Plus, condinsation is short lived as exhaust heats up fast and this video is after a freeway run. So no steam.
Compression test would be next. Can you have someone else hit the gas and you sniff the puff? May be able to smell coolant vs. oil.
And I would hope a different smog guy might have forgetton his glasses would be good.
