Refusal is a bad idea. FL law on the subject...
If a driver thinks the breathalyzer isn’t accurate, there is nothing that prohibits the driver from having a blood test done.
You get in trouble if you refuse the breath/urine/blood tests.
If asked to perform the circus animal or mentalist tricks, it’s best to refuse and ask for the breathalyzer.
You could blow 0.0 at the station but could still get the DUI if you stumble the other stuff, as many sober folks would.
Not always. I would refuse to take a field sobrienty test due to a physical condition that makes me unsteady on my feet and I would definitely fall down trying to do a field sobriety tests. I would tell the officer I refuse and why and then say I will take a breathalyzer or blood test.