I had similar issue and my dealer had 2 attempts to set them at the right height.
1st attempt they adjusted during the visit when a recall was required on the Rad hose.
2nd attempt during it's 1st annual service. They took it over to a MOT station they normally use and now I can ride without anyone flashing me.
It's really frustrating when that happened especially early morning rides. Definately take it in and ask them to set it as if it's being checked for MOT.