"Indestructable fences" are a good way to get sued.

Make a fuss and get a guardrail put up, sell your house and buy one in a
different location, or...

Dig out the yard 12-18" deep for a 10-20 foot strip near the road. Pile
this dirt into a berm on the house side of the dug-out area. Fill the
area with ball bearings. Place no trespassing signs, and charge the
drivers that end up stuck in the ball-bearing pit with trespassing.

Or, put a pond or marsh there, which is cheaper than ball bearings. If
you can get a nice rounded grade of pea stone that might work too, but
the usual stuff can't be depended upon to get the car good and stuck.

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