When hiding under the floor-boards the police search the room flipping the mattress to check under the bed. The following morning when leaving the hiding space under the floor-boards, the bed is made, whilst the home owners had been detained.
Uncle Earl, Naomi, Queen and Slim drive in the night to torch the pickup truck. Queen and Slim then drive away in Uncle Earl's car, and Uncle Earl and Naomi are left stranded. They could have brought a third car.
Gayle King refers to the getaway plane as a jet plane. It is a small prop plane.