SoCal Edison are idiots

So, I go to pay my Southern CA Edison protection money...eh...utility bill today online. The bill is due on 27-MAY so I schedule my payment for 26-MAY. When I submit, I get an error telling me that 26-MAY is not workday. Presumably, this is because of Memorial Day. Who the F!@#$% cares? It is not like there is a monkey in an office somewhere manually submitting my payment, right? So who cares whether the day and hour it is submitted is a workday or it is the middle of the night on New Year's Eve? What business analyst (had to be. I have to believe that the developer would not have implemented this) decided this was a good idea?