They can do so, but may not do so:

- fully packed with parked emergency vehicles
- nearby already has sidewalks; use those
- streets are cordoned off; not expecting short-term reopening (e.g. DVIU will be staying here for approx a month)

You may interpret that the roads are closed off and reserved for various government service vehicles until god knows when. The sheer number of expected government service vehicles that will access this area / will station in this area strongly justifies `access=no` and not simply `motor_vehicles=no`, the tag `motor_vehicles=no` which I understand is something you may be proposing to adopt.