I hope these mosquitoes were not released in the wild.
The simple answer would be to add a natural strongly repellent gentle oil to the DEET spray.
Spray made from lemon eucalyptus works[1]. Not as well as DEET, but it works.
[1] https://www.consumerreports.org/health/insect-repellent/oil-...
At that point just skip the deet.
A couple years back, I spray some DEET on my shoes, 5 seconds later, a tiger mosquito tried to bite me on that spot (and yes on the shoe itself, just insane to see it trying ).
They already loved that shit.