From your post, it appears like you're the sole spokesperson for this problem?
You've got 30+ people with the same concern. Organize their assistance. You can get racks with a spot for everyone for about $35 per person. Management likes a defined action plan with dollars. Since they're being obstinant, rather then telling them what they need to do, give them the solution as a group including how much it will cost per employee and negotiate how much they can contribute.
As downtube points out, the company receives considerable benefits from commuting workers.