The responsible thing to say would be to resist temptation. You already know you shouldn't, that's why you want to pass the responsibility on to someone else. The internet answer is fuck it. Enjoy life. Consequences be damned. It's all temporary anyway.
If you do eat the Oreos now, you’ll have to make up for it tomorrow with some added activity, or going for a longer time working out. So weigh it out (the consequences, lol) and see if it’s worth it to you to eat them now or wait🤗