Humor aside, with something like this, you've got to do it right or not at all. Having spent almost 50 years on the highway, I can foresee all sorts of inappropriate reactions from drivers if it starts raining Ping-Pong balls, and some really bad consequences. We're probably lucky no accidents occurred on the road as a result, because don't need that sort of publicity about what the public would likely perceive as "those dam-fool little airplane pilots".
Yeah, I know, Ron's just being a party-pooper again, but flying is a privilege and it comes with the responsibility to consider all the possible outcomes and not do things where the risk isn't worth the return.