I have no idea if the crew intentionally blew leaves into your car or not -- mot likely it was an accident and your car just happened to be in the 'line of fire', so to speak. However, the crew physically assaulting your husband was completely uncalled for and I think your husband should have called the police immediately. While everything that proceeded that jab to the stomach was pretty innocent, physically harming someone is a crime and that particular crew member could be charged and arrested for what he did (and I think he should be too).

The bank manager should be pretty darn concerned, though - one of his employees assaulted a customer in a manner that was not self-defense (I think your husband would have had to strike first for their move to be considered self-defense). That could not only ruin business for that particular branch if you happened to spread the word that the lawn crew was attacking people, but I think it could also land the manager and his nutjob lawn crew in court. I'd bet a good chunk of money if you say the word "lawsuit" to this manager, he'll shape up right quick. He ought to thank his lucky stars you didn't seek legal action because I think many people would, even if your husband sustained no real or lasting injuries.