Oil is mistaken for heroin, really?

http://www.cbsnews.com/8301-504083_1...33-504083.html
"A Minnesota senior citizen was jailed for 12 days in Canada after a jar of motor oil in her car was mistaken for heroin.
Janet Goodin was crossing the border at the Manitoba port of entry to play bingo when Canadian border guards found a jar of brownish liquid in her car, and ran some tests.
Goodin, a former administrative assistant for the Girl Scouts, was shocked when it tested positive for drugs."
Author: Stoga