If you have to place it in the hall, just bring it in and park it. If they don't like where you've parked the bike, ask for another INDOOR location.

Be bold, but for chr*** sake, be considerate. Don't distract someone from working. Whatever you do, don't leave wheel marks, grease or a mess on the carpet. If that means carrying the bike across the carpet or wiping the bike down before bringing it in, do so. Don't give 'em a reason to complain.