i emailed dream team LA and asked them about it and this is the exact response i received.

"It's as safe as being out like any other day. NO ONE HAS THE RIGHT TO ASK ANYONE ABOUT THEIR LEGAL STATUS PR CITIZENSHIP. I know we're calling attention to it but we have permits and all that good stuff. It's ok to be afraid and if you don't feel safe I understand, but we are not putting anyone at risk. "

... so i guess it will be pretty safe.