Man if you actually did a FST and passed you are the only person in history that I know has done that.
Those tests are designed for you to fail.
The officer couldn't even do it if his life depended on it.
Houston is the DWI capital of the world. There are over 300,000 people on probation at any given time.
It's a huge revenue generator and at the same time it ruins your life.
I speak from experience, here is what you do.
A. Never admit to drinking
B. Never take the breath test they are inaccurate
C. Never do a FST because if he asks you out of the car it's already over. You got lucky this time.
D. Remember everything is on camera so don't argue. If you have a good video you can fight it. If you are see arguing then the prosecutor will claim you are belligerent.
E. Call a ****ing cab. Will save you lots of time and money and headache.