At the 3 sites I've bike commuted to, bikes were to be parked outside and were not allowed inside. In one building I was told that they did not want me to cause a hazard carrying the bike down 6 flights of stairs in case of fire. Who would do that kind of crazy stuff if there was a fire? Of course I would.
If you just like riding right after work, you can bring the bike to work in the car and ride after work; then drive home. You can also alternate bike commutes with car commutes and keep your bike inside the car during your workday.
Bosses do not like it when they have to waste their time and energies dealing with things they do not feel are important especially when they are not related to doing actual work. Figure it all out and keep the bike commuting low profile.