That’s a good idea. I’m at the end of a dead end, a d have PLENTY of driveway, yet every few months somebody drives over my wet grass. I may think about strategically placing some “BFR”s, as they’re called around here.now... haul them to your driveway and place one on either side.
I did that with 2 'landscaping stones' (3x8x2' ). Saved the fence from being hit, again...
HOW someone can't get a car through a 16' opening is beyond me.....