Wait till it gets cold. The trees will have lost their leaves, and it will make the use of IR detectors much more practical. They will be able to spot fires, warm bodies and even the mouths of caves.
Winter did not seem to help them capture Eric Rudolph. It took them five years, and it was pure luck when they caught him; a regular patrolman spotted him digging through trash, it wasn’t any of the searchers with their expensive, fancy equipment that found Rudolph.
Hunting season will bring tens of thousands of footprints everywhere.
Much like Eric Rudolph, you'll probably find him at a diner dumpster on some county road diner scrounging a meal.