This from Martin Nowak:
Drove by the former Willow Springs Fire house which is under Tri-State now. Took some pictures. Heres a picture of the Tri-State name on the building and two former Willow Springs suvs outside. There was a Chevy pickup truck (what looked like a brush unit) but it is now gone. Also I attached a picture of one of the newer police units that has the same design as the Willow Springs Fire had.