..Why not Plac Konstytucji during lunch?
Zbigniew Blania-Bolnar explains it in his other books.:
lubimyczytac.pl/ksiazka/132858/obecnosc-ufo-tom-1
lubimyczytac.pl/ksiazka/132860/obecnosc-ufo-tom-2
Basically, because they are space turists, not space ambassadors.