After the marking period, an excavator arrives and sees clear evidence of an unmarked utility in the dig area. The correct action is to:

1. Start digging carefully with a large bucket and hope the line is deep
2. Make an additional contact with the notification center and not begin excavating until 3 hours later, after checking positive response
3. Ignore the evidence if the original ticket number is still valid
4. Paint over the evidence with white proposed-excavation paint