Vehicle security for long road trip

Besides just simply chaining your hood and making sure your insurance is good, I'd suggest traveling with a friend with his own vehicle. Cabling or chaining both cars together would make it nearly impossible to steal either one without breaking the bond between them.
With the cordless tools out there today, they can make short work of chains. You would need high tensile steel that is difficult to grind through.
The neighbors do not stop at a stop sign at the intersection across from me. When the parents blow through at 20 to 30MPH, not much chance of getting their wanker kids to stop. They have blasted through so fast they have almost ended up in the ditch on their door handles whether gravel or snow and ice. One almost hit another neighbor driving straight through. I have talked to the parents, the police and the county. A while back they cut the signpost off just above the snow. Now the snow is mostly melted and the ground just thinking of thawing. This morning the sign is at about a 30° angle from vertical. The county installed a new sign a month ago. Looks like they tried to pull the post out of the frozen ground. Too bad a load of rock salt in the 410 is no longer legal.
I did think about a potatoe gun with a condom filled with pig manure. Want to act like a ********, might as well look and smell like one, but then I would be the bad guy. Darn tempting though!