Is there an iPhone app that doesn't let you call someone for a few days?

Long story short, I'd like to cut off contact with someone for maybe 2-3 days. Is there an app on the iPhone that won't allow you to call or text someone for a brief predetermined period of time?

I don't think so, just set a reminder everyday so you don't have contact with them or write their contact info on a paper and delete them from your phone until you are ready to contact them.