I can relate to what you stated Steve, but a few more roads have been built since 129 was around, and with better information, it could be avoided. I was using my GPS coming down, has trucking software in it, and forgot to change it to "CAR" mode, and it was taking me the long way around to get to the Dam...so the new software works, but many buy the cheap car GPS's and use them in the trucks. But, signage needs to be there before the ban and fines take place...and you are correct, some trucks will have to be exempt for deliveries, so all won't be banned...