Woops, uploaded wrong file before.
I'm gonna see if there are anymore improvements, but no matter how much I manipulated on the round before the aliens, I could not manipulate the one alien to leave earlier, only the customers to come after it.
I'll look for anymore improvements before submitting. If I don't find any, this will be the file I'll submit.
EDIT: literally 1 frame improvement found but I'm too lazy to upload the file