Had a truck driver pretty upset with a VA Trooper the other day. He was talking to the other drivers in the staging area while waiting to gain access on base. I was going over his contents and he started telling me how the Trooper wrote him a ticket for using his 4-way flashers going up the mountain since he was driving at a low speed. I said "I thought that was normal for truckers to do that?" He told me the Trooper said "you can not use Emergency flashers while driving on the roads unless you are in an emergency." I told him I never heard of that. I always thought when truckers did that it was more of an hazard or warning flasher to warn drivers coming up from behind. I guess I was wrong but I do see it a lot on the road. Is that an actual law and is it really enforced?