Kool keta u shouldnt come with such a narrow time limit, probably u faced such situation due to ticket problem. Generally you will get cab type shuttle which is not expensive from mpls airport. Well it would be good if your friends can pick you up, but dont worry u can pick shuttle and get to your school. Here is the information that will help you. http://www.mnsu.edu/iso/newstudents/faqs.html#How%20do%20I%20get%20from%20the%20airport%20to%20Mankato?