What's This? (Part 3)

Conclusive evidence of a cheating husband's EMA with his Boyanese seamstress? Even more conclusive evidence of the Pentagon's and President Eisenhower's blatant cover-up of the 1947 Roswell Incident? Nah! It's actually a light indicator for lot availability in indoor car parks (red, in this case, means 'taken'). Gotcha!