> They could get by fine on a normal toll amount. $15 is indefensible. Who's to say $15 isn't a normal toll amount? As far as I know the bridge is quite busy w

> They could get by fine on a normal toll amount. $15 is indefensible. Who's to say $15 isn't a normal toll amount? As far as I know the bridge is quite busy which means it seems very defensible. They discount it for electronically billed tolls (which makes it faster for everybody) and discount it again for carpoolers (less cars, again faster for everybody). The $15 is the amount you pay if you're having the most impact.