Just as a note, the County and City have a somewhat antagonistic relationship, although County residents probably make up a decent number of drivers within City Limits.
Yes, that was my thinking. A lot of urban core drivers come in from the suburbs. I'd be willing to bet that people from outside the city are behind a disproportionate share of aggressive incidents.
Yeah, as a resident I doubt that. We have a pretty aggressive driving culture and I don't think we can blame it on Trumpers driving in from the Burbs to cause trouble.