Wow, crazy stuff here:
http://www.lrc.ky.gov/KRS/189-00/430.PDF
I was looking for laws regarding the number of mirrors required in Kentucky and stumbled onto this gem. Good luck catching me in the act and being able to prove it. Weird, eh?
Oh, and the law states in regards to windshield wipers:
"The windshield on every motor vehicle shall be equipped with a device for cleaning rain, snow or other moisture from the windshield. The device shall be so constructed as to be controlled by the operator of the vehicle."
I've removed my wipers and keep them inside the the car (negligible FE benefits, but it's quieter without them). I'm not sure that they could get me for this, but I'll keep a copy of the statue in the glovebox just in case they need a reminder of the vagueness of their law.