three feet is the law in Florida but there are so many under-medicated, over-medicated, dementia-ridden, drug-addicted, drunk, texting or clueless drivers that it's a good chance that in one year you'd be one of the dead hundred or so cyclists killed in our county alone
(last week i watched a van go speeding past me down the street, slewing every 100 feet or so into curb, each time causing a small black puff of sidewall to blow into the air - good thing i was in-between curb contacts)