that's where students at Helamen Halls park as well I believe. Many use a bike or scooter for their daily trips up to campus and just park over there for when they need a car for shopping or something.

https://byu.service-now.com/it/en/parking-registration-and-payment?id=kb_article&sys_id=700142c31b3b9110124497d7b04bcb91#:~:text=Return%20to%20Top-,Where%20can%20I%20park%20for%20free%3F,Park%20Apartments%20off%20University%20Avenue)