I do see any listings for Ziebart that are recent, the numbers that I found googling is a restaurant (beers and burgers, mmmm), the address is around where I work, but I have never seen the place, so anyways I don't know what to tell you.
There are a TON of thunderbirds and cougars here, just not many that want to do more with them than drive them and put reverse offset wheels and sparkly/rainbow tint on them. This place is RWD V8 car paradise, I have a Grand Marquis too, between Birds, Cougars, and older box Crown Vics, I would guess it is higher percentage than most other places.
97 Mark VIII LSC/Silver/Gray leather
97 Cougar 4.6 Sport/White Opalescent Tricoat Metallic /Gray leather down but not out?
89 Cougar LS 3.8/Oxford White/Gray velour/HG need replaced AGAIN
00 Grand Marquis LS/Vibrant White/Gray velour
63 Falcon 302/black and rust/shed isn't moving
82 F-150/Oxford White/dumb VV carb doesn't pass emissions