Signage states if you park and pay by bill (not by app or you forget to pay by app) you will be assessed fifty cents. My bills reflect a full dollar per day parked. They tried to pull a fast one on commuters who park starting last month (3/1/19).

For example. sign below is from Framingham lot. Sign states a $4.50 cost if not pre-paid via app. Actual bills reflect $5.00 (scroll down) for non-payment.