Incredible! The airport/city/county needs to call out the airport crash and fire trucks and use the fire hoses on them. Wash them right over the side if necessary. Let them figure out how to save themselves from injuries. They should all be prepared to pay for the circumstances when they take to the streets like that - whether monetary or personal. Make it hurt one way or the other - I don’t care which!
Make sure the firemen added Purple Dye to the water. Would make it easy to find them, by the police.
Snow plows would be better
Good idea. Soak the protestors, really vandals, with that stinky foam.