That sucks! I would try to compromise. First look at all alternatives inside. Pick one or two that would be out of the way of people. Then try to get people on your side such as ask them would they have a problem with the bike being at such and such a place. If that doesn't work, get yourself a beater that is so messed up nobody would dare steal it.

I am blessed, my bike comes in, has it own parking spot inside. I just happened to be the only bike commuter at my workplace too..

Luck to you..