A friend of mine who is an Austrian citizen is currently doing an internship on a Canadian farm and got issued a speeding ticket for going 140 km/h in a 100 km/h limit zone. For reference, this was one of these country roads that go straight ahead for hours at a time, so I completely understand. She was using the car of her employers who know about the incident and support her. She got stopped by a police officer on the spot and had to show her (Austrian) driving license, but was not asked for her passport or home address in Austria.
The fine is pretty hefty (about 400$) so she's thinking about not paying it and hoping that authorities won't track her down once she's back to Austria. She'll go back in about four weeks and got the ticket three days ago.
What are possible consequences if she decides to go through with this? Will the Canadian authorities be willing/able to prosecute her once she is back in Austria? Might there occur any problems when passing the border control at the airport? And, though this is not a concern at the moment, would she be able to enter Canada again at a later date without repercussions?