You have to be careful relying on AARP for info. I was an insurance advisor for over 30 yrs and found that people were being missinformed by there reps. as none of them are trained very well and none are licensed to even give advice but they still do. The worst of it is they usually only have one option for there products so they are constantly shoving square pegs into round holes. My advice is to go directly to the source and skip the broker.
I had an AARP membership for a yr or so. I honestly found no benefit to it. Many of the same (useful) discounts can be had via AAA and other organizations.. Heck even credit cards can provide close to the same discounts on certain items