And, Hanna, what's so nice about Sharia law?
Except music and concerts - I'm not against that the rest of things in that sign are banned in my neighbourhood
If these appear regularly and in so many places at once then the answer to your question would probably be yes.
One nutjob in Daugavpils recently put up many signs which read that Latgale should secede from Latvia and join Russia.
These Sharia law signs might be similar.