Stop in for a cup of coffee

Tooljunkie said
Shop vac and a long pipe. Plug hose and leave it in the sun for a day. Works well. Done it a few times.

Sounds good if you can see the nest. I couldn't and didn't want to crawl under to try to do it. I got stung enough last year by mud wasps when I ran a rented "billy goat" brush clearer over a nest down the hill.