Nope, you pay 10% (IIRC) of it if doesn't get dismissed. They handle that payment transaction for you, so the 10% isn't terrible considering how much of a PITA

Nope, you pay 10% (IIRC) of it if doesn't get dismissed. They handle that payment transaction for you, so the 10% isn't terrible considering how much of a PITA it is to try to use the metro's ticket payment system.