By noon on black friday all the “door buster” deals are gone, so it’s basically becomes a normal holiday business day. The way they load up black friday sales these days if you sleep until dawn you basically missed the sale.
Not unless you hide the item in the store or something as I have heard some people do. But, you can’t very well do that with some items.
Also, I have found many websites offer the same price as in the store (not very often, but sometimes).