Pro tip: DO NOT swipe cc @Caltrain automat BEFORE selecting ticket options. wrong ticket = angry conductor. I thought I got lucky with a Zone 1 to 3 ticket (SF to MV) but it was an "ELIGIBLE DISCOUNT" variant. Oops. Conductor made me disembark at next stop to get a new ticket (cheaper than ~$400 fine) so I spent an hour biking around exploring downtown San Mateo while waiting for the next train. - Tantek

Pro tip: DO NOT swipe cc @Caltrain automat BEFORE selecting ticket options. wrong ticket = angry conductor. I thought I got lucky with a Zone 1 to 3 ticket (SF to MV) but it was an "ELIGIBLE DISCOUNT" variant. Oops. Conductor made me disembark at next stop to get a new ticket (cheaper than ~$400 fine) so I spent an hour biking around exploring downtown San Mateo while waiting for the next train.