Physiotherapists use a form of acupuncture called dry needling, which can be used to trigger muscle twitching/relaxation (I’m not really super knowledgeable on it, I’ve just been to the physio, who use this in combination with massage, specific exercises etc)
It’s certainly not placebo
As for all the other claims made, I dunno.
People’s right to their own personal joys ends at everyone else’s right to safety and not being killed on the road (especially as a pedestrian, like you wouldn’t be able to see shit in this thing).
Drive it only on private property and transport it in suitable truck? Fine