Yes, I said that wrong . . . and made an assumption as well. I assumed that the "throw away" would be a one night stay. In that situation, you get check in and check out day privileges. If your stay is longer, then your privileges last FROM your check in day THROUGH your check out day.
What I was trying to say was that if you have a one night reservation, but you have 10 day tickets, you won't get parking etc for the entire 10 days.
You will be able to book FP+ 60 days out for the entire 10 days, but NOT 60+10, so you will have to make the FP+ selections 60 days out from each of your park days.