Dave, the first officer asked to see the rental agreement and I said to him. "It is in the console. Before I open it up, I have my loaded 9mm CC pistol in there. What do you want me to do? " He said "Not a problem, go ahead and get it out." The long guns had so much stuff piled on top they couldn't see the cases.
I think it's all in how you talk to the officer and how "at ease" you make him feel. Initially as he walked around to the passenger side of the vehicle I had rolled down both of the windows on that side so he could easily see into both the front and back of the passenger compartment of the truck.