I don't have enough posts to edit the wiki, but I just got these codes via Hertz email:

Save $5 per day on the base rate* of rentals booked with PC# 204144—up to $20 off Weekend Rentals and up to $30 off Weekly Rentals. Reserve now for vehicle pick-up between 2/1 and 4/15/18.

Save $5 a day, up to $15, on the base rate* of Weekend Rentals of two days or more booked with PC# 204152. Offer valid for vehicle pick-up through 2/28/18.