I like this log used to protect the border:
https://www.google.com/maps/@45.0108844,-73.3349375,3a,75y,1...
https://www.google.com/maps/@45.0108844,-73.3349375,3a,75y,1...
EDIT: In response to the skepticism, here is a source: https://www.buzzfeed.com/ishmaeldaro/us-canada-border-photos
This Photographer Spent Three Years Documenting The Canada-U.S. Border
Along the way, Rutkauskas found that the "longest undefended border in the world" is a lot more heavily policed than its reputation suggests.
Although a somewhat common story I've heard is youths goofing around on ATVs or snowmobiles being intercepted and let off with a strict warning. Perhaps somewhat mythologically passed down generation to generation.
And they don't have many snowmobile issues in Florida.