All gas stations closed because they could not sell gasoline/diesel. Today there are lines on all gas stations, people filling their car tanks and bottles..
Oh, let me tell you about electric cars! Many people had to spend the night somewhere away from home because they could not charge their cars.. My sister (with her job's electric car) had to stay the night some 200km away from home, and since the ATMs (Multibanco) didn't work, she didn't have physical money to pay for food. Luckily a stranger paid for the food (yogurt and some cookies). Petrol cars, because of their range, had better luck!
Pure fear and panic..
I can only blame the authorities (Portuguese/European) for not having contingency plans for keeping people informed, and thus letting fear spread like wildfire.