http://www.sctrafficsafety.org/pace.html
I see what you mean. At first it didn't sound that bad, but as soon as I saw that sticker I was instantly pissed. If I was driving, I'd be trying to run that pace car off the road. (well, not actually.)
Pace car sounds more like "rolling road block" to me, and that detail is best left to police officers, not "community enforcers."