PANSA can shut down their radios, ATC equipement, ILS etc. as it all belongs to them. Modlin bought themselves an ILS a long time ago which was not approved by PANSA "as this type of ILS was not operated in the country before".
Mind you this is a country where not a single CAT III ILS is in use for 40 million residents and ~20 sizeable commercial airports. WAW has one for more than a year now which is constantly NOTAMed unavailable as it's not approved to be used as CAT III by the authorities for being "too dangerous". Anything can happen here.