Blowing smoke in someone’s face can be very intentional and nobody would ever make news or be arrested for doing it to some passerby
Smokers get cancer because they smoke tens of thousands of cigarettes. You won't get cancer because you kind of smoked .1 cigarettes. Also, the majority of lifetime smokers don't even get lung cancer.
A full range of scientific evidence, extending from the molecular level to whole populations, supports the conclusion that secondhand smoke causes disease. The scope of this evidence is enormous, and encompasses not only the literature on secondhand smoke but also relevant findings on active smoking and on the toxicity of individual tobacco smoke components.
* The Health Consequences of Involuntary Exposure to Tobacco Smoke: A Report of the Surgeon General. https://www.ncbi.nlm.nih.gov/books/NBK44321/356 links to supporting studies and works
Smoking blowing smoke in your face once is one time and outside. It's easily millions of times less smoke exposure than what you're referring to here.
You've had a short life with minimal exposure to smokers then.