Hello,
The lights MUST be adjustable per NTSB regulations!
Either there is a switch in your car, or the headlights are manually adjustable. There is no such thing as a non adjustable headlight, I've been in the headlight related business for almost 20 years now and can assure you, they are adjustable in some way.
I looked through the 2007 CX-7 Manual and have found there is a switch for changing the headlight angle. It makes no distinction between halogen or HID in the manual.
Are you sure you do not have this switch? Please let us know ASAP! We wouldn't want you to hit the guardrail this time!

Thank you.