For short trips what you described probably wouldn't be a problem...but if you have to travel down I-65 doing 70+ mph then it might be a big pain in the butt. One time I saw two good old boys down at Salt River haul a ten foot jon-boat on top of a Ford Taurus...they'd been fishing all night and had a pretty good mess of catch fish. They put the boat on top of the car roof and threw the catfish inside the boat and away they went. True story.