Health and safety laws do apply in Canada as does common sense....
The difference is that in Canada we could have six months of snow and very low temperatures so we prepared for it....snow chains....good, very good road clearing....and points to plug in our cars...because that was normal life for half the year....
We don't have to prepare for that here so, for the few days it does happen, it affects us more.....
But when it does happen embrace and enjoy it if you can....or tuck up under the duvet with a good book......or man if you're lucky..... ;-)