In economics, there are many border effects associated with tax and regulatory policies. People shop in X (Oregon) and live in Y (Washington) to avoid sales or income taxes. But sometimes these are just small effects.
In my neighborhood, abutting the City of St. Paul, we are rich in Car2go vehicles, because car2Go operates in Minneapolis and not St. Paul. Thus to legally park and check out of your car, you must leave it on a Minneapolis city street. Residents just across the City Line can still sign up for Car2Go, and have, they just park a block or two away in Minneapolis, giving us the benefits of their membership – more cars within walking distance, and the curse of additional parked cars in our fair city.
Like I said, it’s not a big deal, but it is noticeable and interesting, and probably temporary as CAR2GO spreads virally across the border.