If you are crossing the border on the train to Montreal here, it may take some time to complete customs. There's AT&T service here so don't worry about roaming.
If its busy and you're waiting in a long line. Be kind to the planet and turn off your engine.
A lot faster than going through Champlain on a busy day.
This is off by almost a mile and needs to be merged into the new one
Have your shit in order and no outside food.
Don't bring tomatoes and shallots into the USA! They confiscate them and no recuperation .... Direct to garbage! :-(
High noon gets busy, heading back to the states and it's already 27 mins.