tl;dr: Don't go here.
You may think that you know how blah Thai Express usually is, but this particular location is worse than usual.
The staff makes sure you know that they are completely indifferent to you. When they mess up your order it should come as no surprise. Food is mediocre quality and is very pricey for a fast-food place. There are many Thai places around here that are better in every way, for a comparable price or less.
The only good thing that can be said about this place is that you will get your food fast because nobody is ever in there.