Glad the western provinces D.O.T. are actively at work. I travel a 500 mile radius of Toronto, Ontario,Canada. 90% of the scales/inspection stations I encounter, U.S. and Ontario are closed. The ones that are open only pull you around back dependant 99% on your scale weight. On most random mobile roadside checks I can talk my way out of violations depending on what they are. I went three years without a D.O.T. inspection.
My opinion of D.O.T. inspections is they either have a shortage of staff to man the stations or they realize if they were open 24/7 they would cripple the economy.