The U.N.C.L.E. van with Solo and Dr. Swan is quite a few blocks away from the T.H.R.U.S.H. vehicle. If you look closely, the same extra, a young lady wearing gray & pink, appears in both scenes featuring the departing vehicles.
When Mr. Mozart steps into the bee lab, he expresses concern over the possibility of the beekeeper being stung, yet the hood and visor of his protective suit betray a very clear and present gap exposing his neck and therefore his entire head to that same said danger.