Pointed with a firearm by truck driver

Guys we just had a incident with a truck driver driving in the emergency lane, we cut him off cause it is a emergency lane for a reason. The driver got out of the truck and got a firearm out of his truck at the back, and we sped off. We phoned the company and spoke to a lady as well as a guy by the name of Mohamed.... They told us we can do as we please we were in the wrong and started swearing me and my husband. I dont know where else to report it, but i am going to every single group i have to report them. If there was a real emergency in front of us, If there was a real emergency in front how would any EMS get through????