Vehicle Script Debugging

I have the following script, that SHOULD allow me to get into and out of a vehicle, but I can't get out once I get in. Help?

 using UnityEngine;
 using System.Collections;
 public class Vehicle : MonoBehaviour {
     //public float bulletSpeed = 10.0F;
     //public GameObject projectile;
     //public float getInRange = 6.0F;
     public Camera VehicleCamera;
     public GameObject Player;
     private bool InVehicle;
     private bool VehicleControl;
       public float Speed = 80.0F;
      public float RotationSpeed = 100.0F;
     public Transform _Player;
     private float Distance;
     public Transform _Vehicle;
     private Vector3 VehiclePos;
     void Start()
     {
         VehicleCamera.gameObject.SetActive(false);
     }
     void Update()
     {
         Distance = Vector3.Distance(_Player.position, transform.position);
         if(Distance < 6)
         {
         if(Input.GetKeyDown(KeyCode.Tab))
         {
             InVehicle = true;
         }
         }
         else if(InVehicle)
         {
         if(Input.GetKeyDown(KeyCode.Tab))
         {
             InVehicle = false;
             VehiclePos = new Vector3(_Vehicle.transform.position.x + 5, _Vehicle.transform.position.y, _Vehicle.transform.position.z);
             _Player.transform.position = VehiclePos;
         }
         }
         if(InVehicle)
         {
             VehicleCamera.gameObject.SetActive(true);
             Player.gameObject.SetActive(false);
             VehicleControl = true;
             //if (Input.GetKeyDown(KeyCode.Return)) {
                 //var clone = Rigidbody;
                 //clone = Instantiate(projectile, transform.position, transform.rotation);
                 //clone.velocity = transform.TransformDirection (Vector3.forward * bulletSpeed);
             //}
         }
         else
         {
             VehicleCamera.gameObject.SetActive(false);
             Player.gameObject.SetActive(true);
             VehicleControl = false;
         }
         if(VehicleControl)
         {
         float tr = Input.GetAxis("Vertical") * Speed;
         float rot = Input.GetAxis("Horizontal") * RotationSpeed;
         tr *= Time.deltaTime;
         rot *= Time.deltaTime;
         transform.Translate(0, 0, tr);
         transform.Rotate(0, rot, 0);
         }
     }
     void OnGUI()
     {    if(InVehicle == false)
         {
         if(Distance < 6)
         {
             GUILayout.Label("Press TAB");
         }
         }
     }
     
 }