I found this place via Yelp when I needed an emissions test on the fly and most places were closed. It said they were open until midnight, but I called to double check, since the app can tend to be wrong. They told me they did emissions testing until 11pm.
I got there and waited about 5 minutes, paid the $19.95, and my car was back in a jiffy with its passing paperwork. (Yes, they are an official emissions station.)
What made me write a review is the fact that the technician took the time to give us (unsolicited) advice about the DMV and registration that saved us hours of our lives -- It was extremely helpful and appreciated!