If any of the sitemails that are not opened are more than 2-3 days old let uva pick now. If you rather go with LTB's suggestion, get a proxy from uva now and tell him his participation is conditional on tubesocks not making it in time. Waiting until the slot expires before allowing uva in wouldn't help anyone since he would essentially miss his pick and get skipped as many picks that are made before he does check in. Could be late evening since he is now a coaster....
Just trying to protect both sides I guess...