Outnfree,
what an interesting thread!
Meanwhile, I shall carry sidewalk chalk in my pocket so if/when she DOES return and I am present, I can write on the sidewalk in front of her (also permitted), "It's a cult, you know." with an arrow pointing to her display. And then, if it's sunny, make myself available with a posterboard alongside me declaring myself an escapee willing to explain why joining is NOT a good idea.
You have my smile of approval. You're exercising your right to free speech as much as she is.
with an arrow pointing to her display...
Don't forget to adjust the arrow accordingly if she moves her display.
Let us posted in case she returns.
Observador.