When the 96 hour cow-ntdown begins, it is daytime, but when it ends (exactly 4 days later), it is nighttime.
While Bob and the kids are in the freezer, near the beginning, the freezer door behind the kids starts out closed but then appears open, though no one had opened it.
Bob gives Teddy his bill for his burger and fries, and it's $4.16. On the menu board in the restaurant burgers are $5 (for the non daily special), and fries are extra.