Ha, surely someone who has driven a £20,000+ car to a surveilled remote location isn't going to bring ... what, a 4G radio jammer? Wire cutters? Risking electro

Ha, surely someone who has driven a £20,000+ car to a surveilled remote location isn't going to bring ... what, a 4G radio jammer? Wire cutters? Risking electrocution? To save £5-20 on a top-up? While they wait 30-60 minutes for the charge to complete? I had assumed they failed open because the installers have more of an incentive to build trust with drivers than to avoid a little extra revenue loss for a few days?