Yes, True Thai will be closed on Monday. That's the bad news. The good news is that we are open today (Saturday), tomorrow (Sunday), and will re-open on Tuesday, September 7.
How are you going to spend your Labor Day? I am pretty sure I will spend mine sleeping in and going to bed early. You can't catch up on sleep, but I like to try.
I will probably also do some housecleaning. I think I have just the outfit for cleaning the kitchen: