As reported by gospodarka.dziennik.pl:
An analysis by Selectivv Mobile House shows that on March 11 [...] more than 40 percent of those who had previously gone shopping on Sundays went for a walk, while 19 percent visited petrol stations. Compared with the average for Sundays over the last 12 months, traffic at petrol stations increased by more than 300 percent—the shops there were open.
Surprisingly, online shops did not record a particularly significant increase in interest that day. (Details on dziennik.pl.)
And how did you spend the first Sunday under the trading ban? Did you go for a walk? Or perhaps you could not wait until Monday and went to a petrol station? Join the discussion.