1. Can't enter the campus: generally, there will be a campus entrance and exit in the university town, and vehicles need to bring a valid pass to enter. If they don't apply for a pass, they may not be able to enter the campus through the campus access control system.
2. Being punished: Vehicles passing through the campus generally need to be controlled and managed. If you don't have a valid pass, it may be regarded as a violation, and you may face some punishment measures, such as being asked to stop, paying a fine or recording violations.
3. Impacting parking convenience: Generally, university campuses provide parking spaces for students and faculty, and the purpose of handling vehicle passes is to ensure the management and safety of vehicles on campus. If you don't apply for a vehicle pass, you may not be able to use the parking space on campus, which will cause parking inconvenience.
It should be noted that the above situation may be different due to the regulations and management measures of specific university towns. For details, please consult relevant schools or administrative departments to obtain accurate information and policy guidance.