Damn media sensationalism (is that a word?)
For crying out loud, you do not think you won't get similar warning when connecting to any other network of Interest? I promise you, when you connect to my network(s) I own your hardware up to whatever level *I* want since it is my network. Basics are scans for posturing..etc
I would be highly concerned if those warning were not put up. The dealers do not have to use it if they do not want to. They want to so they do.
That's standard IT jibberish in my opinion. If those warning were not there, if that monitoring did not exist and a government database gets comprimised you'd all whine like girls about it anyway. Hell, even with security best practices in place it is a bitch maintaining a secure environment when you have to allow these things to occur.
My '03 Sold.