Even if it's things people from the outside won't even understand or may think are supportive messaging.This!
And even just "Ridsdale Out" would be pretty humorous in the context.
"Cost Neutral 4 Life", "Potts Is On Fire", "Our brand is no brand", "60+ years but never OUR turn".
It wouldn't really matter what the banners state. Could just be Lowe quotes. They're tragically humourous enough all on their own.