Not really? If the people want to get through the locked doors throughout the office, they'll need someone to let them through the doors. At least where I work, the receptionists don't have that access. They need to call people who do have universal door access to let them in. Unless the cops just want to battering-ram their way through all the doors for the fun of it...

Also, a raid without a warrant is not a raid. It's a friendly visit to someone's office.

Nope. With a warrant you break down the door if they don't cooperate. They do find it fun. They won't accept your stalling tactics.

"don't cooperate"? "Yes sir, let me call the people downstairs who can help you." is not stalling.

If they're so impatient, are they going to somehow hack the badge-controlled elevators to make them go where they want?