Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh
Wudu does not break by a person looking at you, even if he were to see you without your hijab on.
It is allowed to offer prayer in any normal open area as long as it is clean and safe.
Almighty Allah knows best.
Views expressed by hosts/guests on this program (live dialogue, Facebook sessions, etc.) are their own and their appearance on the program does not imply an endorsement of them or any entity they represent.