Yes, lets say the buyer is from Chicago and they are sending the order to Florida. Yet the IP address shows up as Amsterdam. Do not ship this order until you talk to the customer. There is always a chance they are on vacation and doing christmas shopping while on the road.... but in this case there is a good chance its a fraudster sitting in an internet cafe in Amsterdam and sending the goods to their cohort in Florida.
Like somebody mentioned, AOL will not show you their location. So if you have any red flags and a AOL IP, phone the customer.