When Andy comes home with his groceries he plops the bag down on an end table, but it makes no thud, and wobbles slightly. This would suggest that the prop people filled it with just cloth or a small blanket for weight and volume.
While Andy makes a cursory cleaning of the kitchen right after Aunt Bee leaves, the soundtrack plays a more symphonic and lyrical version of the shows theme song. This is to emphasize his new found freedom and expansive feelings.
When Aunt Bee gets in the car the top of her door will reflect the lights and equipment set up to make the shot, despite some dulling of the surface to try and prevent this, probably using Vaseline.