Hertz - BMW Roadside Assistance Discount

I just got this notice in the mail, that through BMW's roadside assistance program, they offer you a CDP#1646338.

Has anyone used this to see how good this is?

I priced out some rentals using the code - it gave me 10% off every time. Sometimes it matched my AAA discount while other times AAA is better.

So I guess it's just another code to try when pricing out a rental :)

Szymon