I'd wait another week at least before coming in with a stump grinder. The hardest hit areas between Punta Gorda and Orlando are still in an emergency phase. No power, no essential goods and services. Cleanup consists of simply removing trees from homes and piling the debris in any available open space. If you do come down, be prepared to be totally self-contained, meaning you must have your own supply of food, water, fuel, clothing, etc. These things are simply not readily available. Power will be out in some areas for another week or so. Traffic is horrendous, due to lights being out and debris in the roads. Its a war zone, be prepared.
