Please don’t trust your dealer, check his work over because mine did not!!
I had a similar but not as critcal problem after my EWS was done at my dealer. They forgot to put one of the fairing clips in, and the bike had such a bad buzzing noise I never made it out of the lot. Now one of the fastners fell out of the fairing, and I checked the others, and got a 1/4 turn out of three of them. It's little things like this that make me lose confidence in the dealer's service department. Makes you wonder what else they are forgetting to do.