There are a host of complications that could result from this, including rental agreements and State / Federal law. Beyond the legal or civil possibilities, this will likely result in some form of regulation, or at least start the debate again. My wife is an attorney who use to specialize in corporate and private motor vehicle law. She’s told me more than once that insurance and rental companies have had meetings and discussions about chasing. I trust the injuries were minor, but once attorneys get involved, everything will change. This will be the last year I’m taking clients with me. Not because of this event, but between the crowds changing liability awareness and risk, it’s not worth it.