It's funny what each person takes away from the books. I don't remember that comment in the book. I buy meat for 3 days at a time and haven't had a problem, except for chicken. I always cook chicken within 24-36 hours and fish 36-48. Red meat/Pork I might cook after 3 days.
You should work on changing a few major differences between your habits and your suggestions before focusing things like that. It took me 3 years to change my eating habits completley over without "cheating", which by the way, I never felt bad that I couldn't just jump on the plan. Take it slow. Your body needs 4-6 weeks to accept drastic changes.