Tapping in is paying. You didn't tap in, you didn't pay - suck it up.
"Couldn't believe that security guard stopped me leaving Tesco - all I did was forget to give them any money for the things I took from them".
This.
People in jobs like that are unnecessarily rude I find though.
To be fair to them, it's a terribly paid job where they spend 90% of their time dealing with scumbags.
Snoopy is probably in the other 10% though.
Damned with faint praise but at least he spelled your name correctly.