I have a 2nd round interview with an aerospace company on Thursday. I wore a Theory suit to my 1st round interview. However, when they emailed me for my 2nd round, they said I'll be taking tours of labs so for safety purposes, don't wear heels or open-toed shoes. Unfortunately, as an engineer, I only own my one Theory suit that is hemmed for 3" heels. Can I just wear a pair of black slacks hemmed for flats and a dress shirt? I can also wear a jacket but it won't completely match (ie black slacks with brown blazer or something). Plus CA weather is in the high 80s already.