The border to Mexico and Belize is still open (as today) .
I don't know if Migracion in Guate City is still working , but if so , you can get a 90 days visa extention and with that you get an extention for your TVIP at Aduanas , next to the airport .
If you don't want to do it yourself , there are some lawyers/tramitadores in Antigua who can do it . Wouldn't be a bad idea to stay away from public offices and big crowds .
And remember , starting tomorrow we have a corfu nationwide between 4pm and 4am .
Hope this helps
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