Can I unplug all computer/gadgets from wall while room is painted?

I have a split phone jack (for dial-up), a phone modem, a 10 year old printer (HP dj 845c) originally installed on OS 9, surge protector, mouse and keyboard..all purring alone beautifully in sync w. iMac 10.4.11. Should I have the painters simply skip the one wall where the whole shebang is set up? Very little wall showing so not a big deal.