Usefull info can be found on their homepage :
nomade (click on the button "Location" on the left menu).
There is no night package, but according to what I understand, you can rent the rollers the day before from 6 pm onwards.
So in your case, you could rent your rollers only for saturday (thus paying only for one day or one half-day) but fetching it on friday evening. It costs 9€ per day on weekend (and 6€ per half-day).