It looks like Thai Terminal has shuttered for the foreseeable future. According to signage on the restaurant's door, the closure is due to some sort of gas problem:
The note hints that the restaurant will be reopening soon but, according to commenters, it's unclear when Thai Terminal actually closed— it could have been as long as two weeks ago. At the moment, the Seamless account is off and no one is answering the phones. Eater has reached out for some more info, so stay tuned.