[Az-Geocaching] Opinions on a cache

Ok, this just strikes me as wrong, so I wondered what others think.

City park bench and the cache owner has removed a large dome nut from the
bench.
They placed a very tiny piece of paper inside the dome nut and placed it
back on.

To 'find and sign the cache' one must remove nuts from the city benches
until you find the correct one.

Am I the only one who thinks parks and recreation might have a problem with
caches such as this?