They have a separate lane for adverse reactions.

You’re supposed to put your hazard lights on if you’re having an adverse reaction.

Apparently, that is when they tell you to drive over to the adverse reaction lane.

What could possibly go wrong?

https://ctmirror.org/2021/01/18/connecticuts-largest-covid-vaccination-site-is-now-open-heres-what-you-need-to-know/