Imposter staggers away with the bystander attempting to help him, he turns his head and whispers to her
" Hey you're cramping my style, you should really be more discreet I'm trained for this stuff you aren't..now let's get out of view of the guards.. I'm going to have to find another way in....I'm going around back."
Once Imposter gets out of view, he takes the form of a security guard in the same outfit the one at the door was wearing... and makes his way towards where a back entrance may be.