Everyone is invited to divine service in the Orthodox Church, even Charlie Spencer. There might be occasions when a vast crowd necessitates some ticketing, but generally speaking one can wander into a church without trespassing - a church is not private property in the same way that Lloyd's of London and the Mall of America are. But once there one has to respect some rules, and the group apparently entered the sanctuary and disturbed whatever was going on there. So we have to apply slightly different rules from those regarding properly private places, which is why my list was of houses of worship.