is my V1 ghosting?

so yesterday i was stuck on the highway during a really really bad accident. a CHP was coming up from behind on the left shoulder and i was in the middle or right lane. he left his radar on, and i was picking it up. i should've taken a picture, but i was using navi on my cell phone. anyways, i had 2 Ka signals from him, arrows facing the rear.. any idea why? could it have been a reflection off some car's windshield and hitting V1 also?

in heavy traffic u get those arrows on front and back due to reflections. eyes work best when u get multiple arrows.

overall 90% of the time arrow work just fine.

ah ok, that's what i thought. thanks!