Will I break out if I don't use Proactiv for 7 days?

I am going to the beach for a week with my friend and her parents this Sunday and I was wondering if I should bring just my Proactiv cleanser and some moisturizer since I don't want to break out and I have some mild acne. The cleanser is the most important one, right? I wouldn't feel comfortable in the morning taking so long to do all 3 steps and have my friend waiting for me to get out of the bathroom. What do you think?