A $9 congestion charge is probably a huge help to you. For just $9 per visit, you get much lower traffic and easier parking. Your very high priority trip is easier because lots of lower priority trips either didn't happen, or used transit instead.
Not if you're poor. $9 daily would be quite a lot for poor people, especially since radiation is daily. Furthermore you often have no choice but to use paid hospital parking due to mobility issues, as opposed to cheaper parking near the hospital.
