Abstract: A one piece "Denver Boot" type vehicle immobilization device which may be effectively stored, transported to the site, and very quickly and efficiently applied, having a hub shield which prevents access to a lug nut of the immobilized vehicle's tire and which has an integral locking housing. The device has an adjustable arm which slides in the housing to open and close the device for application and removal, which locks in the immobilizing position, and which is interconnected to two articulating arms which traverse the tire tread and engage the inside of the tire in the immobilizing position.