Actually, the Alexandria Campus Library will not send the cops after you -- but overdue material will generate a hold on student records which will prevent students from registering, receiving grades or transcripts.
In addition, students should be aware that Resereve Items carry a $2 per hour fine if they are not returned within two hours.
Please note that overdue fines are only a mechanism to ensure the return of high-demand material. So avoid fines and be considerate to other users and please return material on time.