Individual lack of respect toward others (the first example) is not the same as state oppression (the second). Strictly speaking, only behaviors of the state or similar oganizations with power (such as corporations) are "authoritarian." OK, the Frankfurt School posited the possibility of an "authoritarian personality" or authoritarian attitudes. But an authoritarian advocates more power for the state or corporation (or whatever), not the kind of anarchic rudeness expressed by the hood in the Explorer.
However, it should be noted that there _is_ a parallel here. Anarchists -- and especially so-called libertarians -- often miss the fact that individual action (e.g., playing music too loud) can violate individual freedom just as state or corporate action can.
-- Jim Devine
"The price one pays for pursuing any profession or calling is an intimate knowledge of its ugly side." -- James Baldwin