As soon as he's adjusted his speed at a pace that keeps him in line but not directly ontop or too close to the car in front of him, he retains an even speed and allows himself to cautiously sweep out the area with his sensors.

The sound of rotor blades directly overhead makes him slightly uncomfortable, but it doesn't affect his driving. Only two chopperbots exist in his world--Blades and that one Combaticon--but if the other two 'bots had a problem with it they'd tell him . . . wouldn't they?