Dwayne
Here is a method that might get you through customs quicker- It works for me
I stop a couple of miles before the border, roll up my shirt sleeves to reveal my 11 inch biceps, and put a fake tattoo of the Grim Reaper on my left arm where the Border Patrol can see it. I have some big sun glasses and I put those on. I scatter some empty 44 magnum ammo boxes throughout the truck, along with some empty Jack Daniels bottles. I take the muffler of the truck.
When the agent comes to the window, I blow a cloud of cigarette smoke in his face (this is the hardest part for me as I am not a smoker, but it important to play the role)-and tell him "Where I am going or what I've got in my vehicle is none of yer flipping business.".
Believe me, with this method, they won't even bother to ask you about bear spray. smile