How to Deal With a Bully

My boyfriend works late so she usually barks when she hears the garage open At 10 55 she started going crazy at first I told her to go back to bed. She then heard my doorbell going off excessively and knocking We never used our front door and not once have we ever entered through our front door. He stays beating on the door until the cops get there and when they get there, I see them put an elderly man in the back of their car. Apparently he has dementia and got out of his house It was so scary in the moment and now I feel kind of silly and Feel like if it was someone trying to hurt me I did the wrong thing by opening the door a little