Does anyone currently have an anti-collision system installed in their wash tunnel? Because of how our wash / express detail area is setup, the wrap around from the wash tunnel to the express detail area is very short with stacking space for only about 4-5 cars. When we are extremely busy, we currently have our prepper/loader look at the exit end and turn off the wash tunnel manually when he sees a wrap around at the exit end. I wanted to try and automate this feature with an Anti Collision System but I wanted to see how effective it actually works from operators that are currently using it.