Reese Witherspoon may have found a police officer who knows who she is … and that could be how she charmed her way out of a parking ticket.

Reese was leaving boxing class in Brentwood Monday afternoon when she came across a traffic cop who was writing her a ticket … but Reese flashed that smile and the officer responded by cutting her a break.

An official from the L.A. Department of Transportation tells TMZ … Reese got to the officer “prior to completing the citation” … therefore it stands to reason the officer had started to write her up.

The official adds, “The individual was allowed to depart, as would any other motorists in a similar circumstance.”

That is just … beyond.

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