Since we have been living in Wenzhou now for over two years, I can totally agree.
It took a lot of getting used to but now it's second nature.
As for the airport coffee, its the same price as any other overpriced airport coffee shop.
The taxi service at 5 pm is the craziest because that is when the day shift gets off work and the night shift gets on. They will not pick you up if you are going the wrong direction or if you don't allow yourself to be a part of a group of strangers sharing a cab. If you can't speak the language, it is intimidating.