No one is going to be close enough for anything like that to happen, but I get your point.
My camera's have remotes, so no need for anyone to be around the vehicles when on video.
When you have already had one heart attack and the doctors tell you you're very likely in for more that could kill you it changes your perspective on how you want the rest of your life to go.
No track within 100 miles of me, and there are plenty of track video's out there already.
I do have an abandoned Fairgrounds about 3-4 miles from my house with a huge parking area.
We are doing this for the viewers because that's what they want to see, not for personal enjoyment per se.