https://www.cbc.ca/news/canada/montreal/us-border-agents-lifts-to-roxham-road-1.6743768

U.S. border agents give rides to Quebec-bound migrants as side hustle, sources tell Radio-Canada

"U.S. border patrol agents are driving Quebec-bound asylum seekers to the irregular border crossing on Roxham Road in exchange for money, picking up groups of people in nearby Plattsburgh, N.Y., while off duty, sources tell Radio-Canada.

https://www.youtube.com/watch?v=57FyjRX2fwI

One source said "this has been known for a few months," adding that several agents are involved, but the exact number is unknown. 

This situation has been reported to Canadian authorities, according to Radio-Canada sources.

Many people looking to cross into Canada use a regular bus line to get to Plattsburgh,which is about 30 minutes away from Roxham Road. 

From there, they walk through a wooded passage, enter Canada and seek asylum."