Buddy got one in a similar situation on shawnee mission parkway and nall a couple of years ago, blew a .10. It was a checkpoint and they had a mobile processing unit on site then he called me to pick him up from the parking lot.
He got a lawyer and was placed on diversion for 1 year, completed the diversion(said it was super easy) and the charge was waived/dismissed assuming he doesnt get one for another 10 years or something, if he does it would count as his second.
But yeah, still lost his license for a month and had to drive with a breathalyzer for a couple months.
TL:DNR- Get a lawyer.