Blow out on I-15

Yesterday my friend and I decided to go to Provo to Wal-mart and do some grocery shopping. We were just chatting and driving along when all of a sudden the car started swerving and I could hear a loud thumping sound. We pulled over to the shoulder and low-and-behold, my tire had blown. Well, here we were two desperate women standing on the side of the freeway and all the cars didn't even slow down. They just kept whizzing by. After about 10 minutes, we realized we must not be sexy enough for anyone to want to stop and help. Unfortunately, we had no cleavage to flash. So we decided we'd better try and help ourselves. I knew that the spare tire was stored in the trunk, so we rummaged around in there until we finally found it! After some serious examination we figured out (we think) how the jack worked. It lifted the car-that's all that was important. Nevermind the dent we created under the bottom of the car with the jack. I knew from hearing other people that the lug nuts were the hardest to get. So I found the crowbar type thing that takes off the lug nuts. I fit it on the first nut and got prepared to put all my weight into it. Surprisingly it twisted easily. I soon found that I could twist them all off with my hands. Hey, who needs a crowbar thing? It was great! The middle of the tire came off easily, but to our dismay it revealed the REAL lug nuts! This had only been the wheel cover. Anyway, needless to say, we figured out what we were doing (sort of) and got the tire changed pretty easily. I still can't understand though, why no one ever honked at us while we were bent over changing the tire?