I made an order a little while ago for something that should come in an envelope, and about twenty minutes later I realized that I'd sent a ZIP with one incorrect digit. All of the other information is correct. I checked the ZIP I sent, and apparently it doesn't exist, so it should be immediately apparent that there's a mistake. Is it reasonable to hope that the post office will catch the mistake and get it to me without a huge delay?
EDIT: For what it's worth, the vendor marked it shipped pretty much right after I made the order. I sent him a message but he still hasn't gotten back to me so I'm worried that he might have actually shipped it.
Zips just make processing quicker.. IME your package will definitely get to you even with the wrong zip or no zip. Assuming city state street are all clear and valid