Interviewer was late and then told me to reschedule because of my outfit.

I applied to a job as a file clerk, I was very clearly told this job was scanning invoices all day at a food warehouse, dull work for minimum wage but was fine with me. I showed up to the interview early, wearing black slacks, plain blouse and flats. The receptionist who brought me upstairs was wearing blue jeans and a grey sweater, yet the woman who sat down to interview me (who was late because of “traffic”) told me I should reschedule because I was dressed too casual for the interview. I politely declined her offer to reschedule and just left.