Let me begin by saying :welcome:.
I think you will find this site very informative. I know I have since I joined a few months ago.
To your question...they are not one in the same. The hood protector is an acrylic piece that attached to the underside lip of your hood to divert bugs and stones away from your hood. Eg:
http://www.weathertech.com/store/mvproduct.aspx?ItemGroupId=5&VehId=645&Year=2008
I have not seen a nose mask for the HL. In fact, I think they are becoming a dying breed because of past issues with inconsistent fading and paint issues from moisture and debris being trapped.
Have you considered a clear film application instead?
http://solutions.3m.com/wps/portal/3M/en_US/Scotchgard-PPF/Home/For_the/Consumer/
Cheers.