It was 10:30 PM already. So, we decided to check in to our Road Side Hilton instead - in our car, at the rest area and facing the rest room with plenty of street lights. Of course, there were a lot of "us" there. I didn't know wether it is romantic or because of economic reasons.
In our car, Mom insisted to have the front seat. After woke up around 2:00 AM and went to the rest room, I found out Mom already occupied my place and was at the back. It was good because at least for half of the night she had a better bed :)
Wow, both of us survived the night and felt pretty good next morning with stiffness everywhere. Above all, we just saved one night lodging expenses. But, I really didn't know how we made it all the way like this. Roadside Hilton is the way to go. Mom already decides to spend ~$150 on shopping.