Just do what a friend of mine did a few years back:

He had a company Transit van and was driving along in it one evening (as you do when it's not your petrol ) Noticed one of those speed trap vans in a layby on an A road outside some houses (which the residents used to park in)

So he pulls in, reverses right up to the camera. Parks up. Pulls some sandwiches out and has a little rest stop. Blokey operating the van was fuming but there was nothing he could do, I think he even pulled out after he'd packed it all away right behind him. Co-incidence or what! LOL