There is absolutely no law in Florida that says you have to do a roadside sobriety test at the request of the police officer. The problem comes about when your case actually goes before the jury and your refusal to do the sobriety test will be admitted in court against you under certain circumstances. That's used as a consciousness of guilt. If you have some physical impairment, bad knees, ankles, hips, things of that nature, and you don't think you can physically do the things that the policeman wants you to do, kindly and very politely decline to take the test. There's no sense in doing the test if you're not going to pass it, to begin with.