"W. E. Fred Wallace" wrote in news: snipped-for-privacy@boe.com:
The 4th Amendment; "The right of the people to be secure in their persons,houses,papers,and effects,against unreasonable searches and seizures,Shall not be violated,and no warrants shall issue,but upon probable cause,supported by oath or affirmation,and particularly describing the place to be searched,and the persons or things to be seized."
"to be secure in their persons,houses,papers,AND EFFECTS..against unreasonable searches"(no warrant or probable cause equals unreasonable)
This amendment is intended to limit government from interfering with the citizens going about their business,unless there is probable cause or warrant for doing so.
What mode of travel one uses,or the time of day/night one travels,should not matter.