Asuka and several other people were involved in an incident where gunshots were fired at an Echo-generated monster, so someone might have noticed that.

Other than that she hasn't had the guts to go out and do anything suspicious, but she might now that everything's so chaotic. She'll also be seeing cops regularly as an LCU student who walks everywhere and she has the shortest temper known to mankind, so a routine stop might escalate if the cops are rude.