i've thought about doing this if I am ever confronted bu the local hitmen. ( elders)
I have rented billboards in the past and it depends on the size, traffic, lighted, paper or vinyl printed etc,..
I would have to, currently, have a way of setting it up anonymously to prevent any blow back.
I think that either JwFacts.com or The truth about "The Truth"
I think a major highway for a few months would expose all the Jws in the area to the sign. It would be the gossip of the circuit, "Did you hear about the apostate billboard on hwy x,., don't drive by there and look at it"
Also thought about buying one of those directional speakers where only those in the zone can hear the info and I would beam it at the entrance of the DC or CA just looping
"The truth can stand any scutiny, you deserve to know, be like the borens and visit jwfacts.com to learn more"
Have not got the nerve just yet.
NJY