No it doesn't make it much harder, in fact it makes it easier to persuade a woman you have opened to go with you to a coffee shop for an instant date. If you stop a woman on the street and its very cold you should only be talking with her for around three or four minutes before pushing for an instant date. When it is very cold a woman is going to welcome the chance of a free hot coffee in a warm place. To instant date it is best to make it seem more natural like saying; "By the way I was just on my way to a coffee shop down the road, if you come with me I will get you one". Make sure you know exactly where the local coffee shops are though in the area where you are sarging.