A: Just stay calm and keep your composure, be the bigger Pig! Don’t be an action hero, don’t antagonize, don’t fire back words or gestures – that is not cool. In other words, don’t let those drivers control your emotions, instead smile and wave (with a full hand, of course). Pigs roll in the dirt, we don’t sling it.
Stooping to the low level of aggressive and unhappy drivers can backfire! They could turn-back and do something much worse, or take their aggression out on the next riding group or solo cyclist. We do not want that to happen, so focus on remembering the description of the vehicle and driver, and get the license plate number. Then feel free to provide that info to the local constabulary so they can do the dirty work.