Not specific to EVs but a general legal question: We have just had a 20mph limit put in our town centre. I think it's a great idea as the pavements are often narrow or only on one side of the road. The new limit will make things a lot safer for old people and schoolchildren. However, the local council have only put temporary speed limit signs, like sandwich boards, around the town until the permanent signs can be installed. Someone has gone around and moved them or turned them so they can't be seen. An angry speed merchant I guess. My question is whether interfering with a speed limit sign is any kind of offence?