My guess is that people were preparing for the pending hurricane rather than being tested --- I think it is likely we will see an increase in the next few days.
Florida reports fewest daily coronavirus deaths in nearly 3 weeks, lowest daily cases in a monthAs virus-hit Florida braces for Tropical Storm Isaias, the state on Sunday reported its fewest daily coronavirus deaths in nearly three weeks and its lowest daily number of cases in almost a month.
Florida’s number of confirmed fatalities rose by 62, for a total of at least 7,084. The state reported another 7,104 positive cases – down from 9,619 the previous day – for a cumulative tally of 487,132.
After battling record-breaking COVID-19 cases and deaths last month, the state’s daily positive rate of infections dropped below 10 percent for the first time since June 24.
More positive signs out of Florida included the continued decline in the number of new patients being hospitalized for COVID-19. The number of patients being treated in hospitals rose by 178 – down 261 from the previous day and down more than 1,000 from peak levels two weeks ago...............
https://www.foxnews.com/us/florida-coronavirus-lowest-daily-deaths-cases