NO, these incidents took place at Border Patrol checkpoints inside the US. Checkpoints are set up on major highways “near” (25-75 miles is their current definition of near) for purposes of checking for illegals and drugs smuggled in from Mexico.
Laws are entirely different for people coming in from another country to the US subject to Customs and Agriculture Inspections and this should not be confused with the checkpoints that are inside the US, and many are located on Interstates. This issue is should authorities be able to stop people traveling within the US.
How strange. What is the rationale for having another checkpoint after the first one at the border?