Try not to feel guilty Zeus. You aren't messing up your hard work. This is a journey, not some sort of religion with sins and transgressions. The great thing about a lifestyle (PB) versus a diet, is that you cannot ruin it. This is your life, so you made some poor choices for the last two days, tomorrow you will make better choices.
No one is perfect. Also, you survived eating SAD up until this point, so a couple of days of non primal foods aren't going to kill you.
The more I see the less I know for sure.