If you can't read the sign, you deserve the tow. I don't blame you at all. I'm sure they'll never do it again in their parking adventures.
I left my comment on the other page after reading the entire post. Not so cranky. This is my first visit and I don't think that makes you cranky. I'm sure you got tired of it. I did feel sorry for the poor old woman with luggage and arms fuels of packages.