National - Using Free Days for Spouse, possible?

My wife will be taking a trip and could use a car at her destination. I have plenty of free days, but won't be along to check the car out. Is it possible to use my Free days for her? I've also got Hertz points, but if I recall correctly, those are not usable by anyone else (please feel free to correct me) :p

Suggestions? We're looking to do 3-4 days of minivan. I guess there's always CC, but the straight option might be best :)

Banked free days are not transferrable - however, the promotional ones (none currently existing) seem to be.

That's what I suspected (on both points as mine expired early June too). Sigh. It's almost (almost) as if they don't want us using the free days :)

Does any other (car rental) program permit assigning free days? Time to peek over at CC.