Perhaps where you are the Police doesn't stand for protests, but you DO have the right to peaceful protest, no matter what anyone tells you. In Portland, Oregon, protests are held fairly regularly, and often block traffic to many areas of downtown, and yet, they go on ...
It would be pretty weird(in the creepy sense)to sell them, but I can see something like that happening if the family donated the money to a foundation which is doing research on cancer.
That's a fancy tin foil hat ya got there.