if the lexus dealier says there is a card you can call them have them give you the number. they have proof that your the owner so tell them you need a replacement or whatever. also try the hammer thing but dont whack the shit out of it. just tap it on. also if those dont work just ask them if there is any thing else you can do or if they can have it towed or somethin like that i mean hell there lexus they have to have some roadside help thing. good luck bro