Media mention with more details:
https://www.kcci.com/article/ankeny-oasis-car-wash-tunnel-of-terror/62686018
Iowa-based haunted house information, since 2010. Posting haunted house videos since 2006.
Media mention with more details:
https://www.kcci.com/article/ankeny-oasis-car-wash-tunnel-of-terror/62686018