Rocky Mountain National Park entrance reservation

To make the most of our three days, I secured a reservation for our first day for 1-3pm (the only time left available), knowing we'll be setting up camp in the morning. Unless you enter the lottery (and win) the night before your desired visit, you're not getting into the park with this exception: If you want to use Bear Lake Road without a reservation, you have to clear the entrance station before 5am and for the rest of the park excluding the Bear Lake Corridor, you need to arrive before 9am.