Agreed.
Luckily, making your account an administrator is as simple as having somebody with admin rights on the machine type:
"net localgroup administrator <domain><username> /add"
at a command prompt on the machine.
Be careful before you walk into this, though - I don't remember the details of how your laptop got on their domain, but some admin types get nervous when somebody walks in with their own machine. I've recently been through this with a contractor here at work, really got down on their case about security big-time.
