I was stopped once years ago for going the wrong way down a one way street (which I did). I knew I may have a chance when the officer asked for my registration, then held it upside down to "read" it (really..no kidding). He then asked me "do jew want a teekit?". I replied No..he asked a couple more times, I just kept acting ignorant (which is pretty normal for me) and he pointed at the One Way sign, shook his finger at me and said "No Mas". I'm sure he was looking for a few dollars and I am also sure he was mumbling under his breath about the stupid gringo who couldn't understand a One Way sign and didn't speak any more spanish than he did english.
In 20+ years of coming to RP that's been my only run in.