yes, most states have laws in regards to lights on vehicles however, NH doesn't seem to have anything on covering/uncovering any lights. http://www.gencourt.state.nh.us/RSA/html/XXI/266/266-37.htm but they'll stick it to you for having over 3 aux. ones or them being too high off the ground. i didn't see anything about having them all on at the same time either.
http://www.gencourt.state.nh.us/RSA/html/N...TOC-XXI-266.htm
btw. don't play stupid or dumb, you will lose and possibly have to pay even more. cop's testimony weighs more then yours. with the amounts of these fines, you may want to consult an attorney.