the parking fee charge is on your check out bill.
you pay it as a one time charge when you are checking out of the hotel.
i can't answer your question completely.
i have seen it go both ways. some pay the day charge, some don't get caught with it.
you check in on monday, leave thursday evening.......
but checking out in the morning on thursday and using the hrh parking lot instead of using the UO parking garage.
they charge per night but since you are leaving your car there, don't know if they will slap you with the $20 day visitor fee.
you have to ask.
you will have a definite parking charge for 3 days.
more than likely that will be it for you.