tough situation. On the one hand, you would think that your employer would be more sensitive to your needs. On the other hand, if cyclists want equality we need to accept that we can't expect to be special. Would it be possible for all of your co-workers to park bikes as well? It there is a good bike rack, I say use it. For now, there is no cultural norm that says bike commuting is ok. Until there is we must continue to use the best that is available to us. I say do your best to find a way to keep your bike in the building. If it doesn't work out, bite the bullet and park at the rack. While I would initially want to put a rack in a parking spot, that would probably only cause more trouble. Go with the flow and hope that it gets better.