Quote Originally Posted by BluesClues
You can get a temporary pass. When you get to the gate ask the guards to direct you to the office for a temp pass. It's normally located right by the gate so you don't have to go too far.

Open post but to be safe you could have your cousin meet you at a gate and get you a visitor's pass and temp vehicle pass (saying that he is military) so you could shop at the wonderful land of "tax free" stores hehe.