They wouldn't have to resort to any shenanigans if parking on campus was free for students.
Yes but not a parking service. If you want to park, arrange that yourself somewhere else, like a private garage.
It would be unavailable to students who actually need it.
There's no way in a million years I could have afforded my own car as a student.
This sidesteps the underlying decision of who pays for those garages. Either you charge for parking and the people who use it pay, or you don't and every student (even the ones who take the bus or carpool) pay.
PS: I took the ten year professional student plan between working at Stanford for a couple years and consulting. I had half of my courses canceled in 2000 when they couldn't find lecturers because most were out making $250-500k in industry.