Mix first 8 ingredients in small bowl. Cover and refrigerate for at least one hour.
Place tomatoes in single layer in large baking dish.
Drizzle with 2 tablespoons hot sauce.
Sprinkle with 1/2 tsp coarse kosher salt. Turn tomatoes several times to coat in hot sauce.
Let stand 20 minutes at room temperature.
Mix flour, cornmeal, thyme, paprika, and 1/2 teaspoons coarse kosher salt in shallow bowl.
Whisk egg and milk in medium bowl.Dip 1 tomato slice in egg mixture, then dredge in flour mixture, turning to coat.
Transfer to baking sheet. Repeat with remaining tomato slices.Melt 2 tablespoons butter with 2 tablespoons oil in heavy large nonstick skillet over medium high heat.
Add 6 tomato slices and cook until golden brown, about 2 minutes per side.
Transfer to paper towels to drain. Repeat with remaining butter, oil, and tomato slices.Overlap 2 tomato slices on each plate. Top each with 1 tablespoons sauce.