Police say the 60-year-old train operator has since been charged with dangerous operation causing bodily harm.
McGuinty says the idea is under "active consideration" by the Department of National Defence and the Canadian Armed Forces.
The Canada Border Services Agency says deportation orders were issued for all three and one has been removed from Canada.
The BC Coroners Service says in a statement that 165 people died in April, up from 143 deaths in March and 132 fatalities in February.
The province has discussed three options: widening the median, turning the intersection into a roundabout, or banning left turns onto the highway, which would force people to turn right before making a U-turn.
The panel's website launched on Tuesday with surveys on six issues. Before taking each survey, participants must watch a short video.