DIY Wasp Spray....semi-fail

During the summer months, we leave our camper parked in our driveway
(we have a little pop-up)

I went out yesterday and set something on top of the camper and a bunch of wasps came flying out the A/C unit!
That scared the H-E- double-hockey-sticks out of me!

I went running in the house like a little girl.
I wouldn't doubt that I screamed either

I was so scared, it was all a blur.

Anyways...so the hubby comes home that night and looks online to find how to get rid of wasps.
He found that if you mix a 70/30 mixture of fabric softener and water together, apparently the wasps will stay away.

Since we were out of wasp spray, we decided to try it out.

This looked to be a big nest inside the A/C unit.

I watched at least 10 wasps fly in and out of it, just while trying to get a picture for a minute.

Here's Chris being very manly and not scared to get close to them.

Result....

So the wasps did initially leave.

Once he sprayed the mixture on the until, they flew out.

A few tried to come back right away and came close to the