Encountering a Puna road-rage driver

[randomq]

Three times now in Hilo, I have pulled into a parking lot with backed up traffic, and noticed everyone pulling around what appears to be a running vehicle in the middle of a lane. Each time it has been a middle aged but seemingly petrified Japanese woman clutching the steering wheel and staring straight ahead avoiding eye contact or communication...

"Are you ok? Need a push?"

(Silence, knuckles white on steering wheel)

What am I witnessing? Is this a common occurrence?