So we were pulled over, ostensibly for speeding though it was marginal at best. The cop said we could pay him a fine of approx $200 on the spot (cash only) and that would settle the matter or we could go to court which would require us to spend several days in a spanish jail.
We paid. And by the way, we felt like we were robbed.
Same thing happened to me in a small town in Texas in the summer of 1981. I felt I was robbed too but it beat spending time in a hot, humid jail cell.