Cupcake, I know your situation has changed, but I'm giving you my two cents for the future.
To be honest, if you want your hubby to drop you off at any of the monorail hotels, you can reach them without going thru the toll plaza. For example, I stayed at Riverside a couple of weeks ago, and we had ressies at Whispering Canyon in the WL. If you turn right coming out of POR, the road dead ends at a "T" and if you turn left, it takes you past a couple of the golf courses, and Ft. Wilderness campground. It eventually brings you out to the main road to get to the Contemporary. (it brings you out at that funky intersection that is just beyond the toll plaza, on the far right, where the busses go).
When I have rented a car from national, I have been picked up at the Kennel Club at the TTC. You can get there as I described above (either by taking "back roads" or by going thru the toll plaza and staying to the far right). At the first light, turn left. Voila, you are there! There is probably a designated drop off section here, I just never noticed it.