To be fair, Ani's intentions aside, as soon as he walked in front of the cars, he had already done probably enough. Some crazed fellow might still throw the door open heedlessly denting the neighbouring car, but I'd guess most people, upon noticing there's somebody watching, would pay extra attention and be more careful. Who knows, without Ani walking there, trying his best to look like an innocent bystander (but obviously failing), the man could have been more careless. After all, he was careless enough to park outside of the lines.