Anonymous wrote:OP here. Ugh. I don't want to jeopardize not getting the job by asking to be paid for this time. I emailed her back asking what time she would like me to stay until because a few hours is vague.
Just email or call and say "my hourly rate is (insert rate here) and I prefer to be paid in cash/check. Please let me know how long you will need me to stay so that I can plan my evening/Saturday accordingly."
I this becomes an issue, it's not a job you want to take in the first place. ( ...and I've been there, when you just need a job and are willing to accept pretty much anything. You will end up miserable and looking for a new position in a few weeks anyways, so save everyone the hassle and don't move forward if it doesn't feel right!)