I was stumbling around trying to see if I should burn $25 on 500 AS MP miles or $30 on 150 Hertz points from E-Rewards and found out you can earn miles from your Hertz reservation including a 6-month retroactive form you can fill out online.
Good list of other airlines:
https://www.hertz.com/rentacar/partn...on=globNav_8_1
and "hotels":
https://www.hertz.com/rentacar/partn...on=globNav_8_1