>What law have they not upheld? Some microscopic municipal bylaws?
After googling it for 1 second:
Ontario Highway Traffic Act,R.S.O. 1990, c. H.8 at section 132
132 (1) No motor vehicle shall be driven on a highway at such a slow rate of speed as to impede or block the normal and reasonable movement of traffic thereon except when the slow rate of speed is necessary for safe operation having regard to all the circumstances.
There are more violations that apply to the truck drivers then general public too.
After googling it for 1 second:
Ontario Highway Traffic Act,R.S.O. 1990, c. H.8 at section 132
There are more violations that apply to the truck drivers then general public too.