The Wacky Wheels car attraction had 2 separate tracks you could drive on. They shared a single queue house (Two queue lines in one building). I thought you entered at the center of the queue house; choosing the left or right entrance line.
Within 4-5 seasons Wacky Wheels was using only one track. Eventually, the east queue line (closest to the former Scooby Doo coaster) was removed along with the queue house covering it. I think this was done in the early 80's (1983-1985).
The Snoopy Boutique is housed in the former west queue line building. KD added walls to enclose it and added a HVAC system. It has been remodeled a couple times since the remaining portion of the queue house was converted to a gift shop.