> That, and attaching a device to his personal car should be considered some kind of tresspassing/vandalism.
It violates the 4th Amendment to the US Constitution, as well as the 14th Amendment, Section 1:
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.
Passed by Congress June 13, 1866. Ratified July 9, 1868.
Note: Article I, section 2, of the Constitution was modified by section 2 of the 14th amendment.
All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.