You can wait and pray at home so long as the Namaaz is not qaza. However, if it will be Qaza, then you pray in the Sunni mosque with the intention of “Furada”, meaning, you will recite your Fatiha, sura and all the zikrs. You don’t have to fold your arms as not all the Sunni do that. Get a Tasbeeh made up of clay to prostrate on.