Northern Illinois University is rolling out changes to its late night ride service. Until now, people could request rides from all over the DeKalb-Sycamore area. But university officials say to prevent abuse of the service, they're setting up two sets of boundaries. One of the zones mostly surrounds the campus area and will be available to anyone during normal hours of operation. The other zone covers more ground, but will be limited to students, faculty and staff. It will also have scaled back hours.