Joe,
That ticket is kind of on the make money type it seems to me. If they know the sign is difficult to see, don't they have some place there they could move it to? They used to have a place here kind of like that except the sign was by a tree and you couldn't see it until you were even with the tree. I think the speed dropped from 60 to 45 there and by the time any person that didn't know about the sign saw it they were already in the lower speed zone and the ticket was on its way. Finally they wrote some person up that took time to take it to court and the judge went to see the sign and told them to move it and threw the ticket out. Techinally, it was legal as you could see the sign, but just as you went into the lower speed zone.
I also saw on the news about your bad weather. In fact from the map it looked as if a lot of places are getting hit with rain, snow, and ice.
Ron