After exiting loading dock I proceeded to the security check out. I could not here what the gaurd was saying because of the other trucks on the entrance side. So I went to the back of the truck to get instructions. It turned into an altercation with the gaurd getting in my face with no mask, pointing a metal seal at me, and other gaurds restraining him. This could have turned into a dangerous situation and still may be for me because I am an asthmatic and try to avoid covid. This needs to be dealt with before another altercation occurs and it turns more violent with another visitor exiting the premises. Thank you.