Doesn’t seem like that would be effective on something like the interstate highways. I’d imagine actually fining people would work.
An area close to where I live turned on speeding cameras for a work zone that’s been notorious for speeders. They clocked 38,000+ tickets in the first week.
One of them was for 106 in a 60 mph zone. I haven’t kept up with it since they turned it on but it was desperately needed.
Disclosure: I’m not any expert on road safety or driver psychology. Just someone that used to drive 50k+ miles a year and saw a lot of what I thought were trends.
I had never paid much attention to Kimmel, (or any late night host personality) but sure I’ll watch Kimmel now.