Skipping a day on P90X?

Alright I'm doing P90X and today is supposed to be Yoga. However my P90X videos are in my car, and by some unfortunate circumstances that I won't go in to, I managed to lock myself out of my car. So Yoga is a no-go today. I'm going to either get new keys from the dealership or call a locksmith tomorrow, so I'll be able to do P90X then. However, what I'm wondering is should I go on to Day 5, Legs and Back or should I adjust my schedule and do Yoga X tomorrow, and move all the days down one? I like doing Yoga, I'd rather not skip it...