Sorry but your 30 seconds sounds like a bit of garbage too. It takes 30 seconds to get out of the car let alone view accomodation.

Your wife should have moved the car - if she doesn't drive, then you shouldn't have blocked the exit.

Your bad manners/thoughtlessness were rewarded in kind. I do not condone the woman who was upset, but maybe she had to get to the hospital, maybe there was an emergency, etc. etc.