Yes.
If non-emergent surgery and no one available to consent, then no surgery.
The surgical consent process at the VA medical centers is by far the most efficient I have seen. Yes, I'll concede the VA has numerous problems and short-comings, though I think the consent is one thing they did get right. One form, surgery + anesthesia + blood consent (can decline if Jehovah's Witness), pt has to sign all of it at once, electronically scanned and signed, and viewable in VA EMR.
On the day of surgery, Anesthesiologist would still see the pt, HPI, exam,....go over the plan, answer questions, etc, but all the paperwork was already done.