What a nice place to stay for the night. There is a designated area to park along the North parking area. There is signage directing you there but you can also park anywhere else along the outer perimeter of the parking lot(s).  (See Google Satellite View of the area to help you out.)

Please patronize the store as it is wonderful place to shop. Wife picked up a great flannel shirt to add to her collection while there. 

FYI, there is also a Maverik Store on your way by that has a truck lane for diesel that is pretty reasonably priced.