Sometimes Autoslash doesn't necessarily use a "legal" CDP. E.g. In a rental from ABQ in July, I booked through Autoslash and because I am a USAA member, and check that box on the Autoslash page, I got the USAA rate. But the CDP that Autoslash used was for USAA OFFICIAL TRAVEL and had a Liability Insurance Supplement as part of the rate. Hertz never asked for a USAA ID, but I wouldn't have had one if they had. Also this rate was about half of what most other rates were at the time.