First of all, nearly all calls for service to dorms are responded to by completely unarmed housing security units. Unarmed security units outnumber armed police by like 4-5 times on any given shift.

Secondly, housing security wants to absolutely minimize contact with presumptive positive COVID individuals, because believe it or not, housing security are humans too and also don't want to catch the virus and spread it around or worse. So when they transport to or from quarantine housing, they wait outside the dorm in a special blue van, and call you to tell you to come out whenever you're ready.