Hairdryers vs radar guns...illegal?

[joysmurf]

My friends and I are having a huge argument over this. I don't think it is, but some of them say it's more illegal then getting caught with pot in your car. Is this true? I always heard the joke that you can play on people: Sit in your car and point a hairdryer at cars that pass by and see which of them slow down, thinking you're a cop. Let me know k?

[Judge]

It is legal to point a hair dryer at a car. The problem arises if you are impeding traffic; causing a danger to traffic; impersonating a policeman...