In the state of Florida, it is not mandatory to take a field sobriety test. It can be beneficial in certain situations to avoid taking one as they can give the prosecutor more evidence against you. Do not feel obligated to take one if you are well within your rights to decline to take the test. Refusing to take the test is not advised, but in rare situations, it may be the better option overall.
However, refusing a breathalyzer test can leave you with some problems. The courts may order your license to be immediately suspended. Not only that, but law enforcement will likely just get a warrant to draw your blood in order to confirm their suspicions of a DUI. keep in mind that a breath test is much easier to be challenged than if your blood is drawn, which is far more accurate. Therefore, in most cases, it is in your best interest to take a breathalyzer.