Saturday morning there was a pile of sand on our patio (our patio is slate pavers laid on a bed of sand.) By Sunday afternoon the pile of sand was quite large and a paver was starting to sink.
This is a very good article on the wasp from The Atlantic magazine. So we will let this one do it's thing and move the table away. I'm not sure we will be able to wait a year (for the new wasp to emerge) to fix the sinking paver though.