I would think whoever owned or managed the ramp would keep it clean to avoid legal action. Maybe a light letter with undertones of legal action to the owner or government agency responsible for upkeep will do the job. Also contact the local newspaper or TV station. It's amazing how a little press prods people and government into action.
Down here they would probably just close the ramp.
Not only that, but why even bother with a legal thread.
Sorry but that is the worst recomendation. That is the reason the US is the way it is, so "class action legal suit feed the lawyers more money happy"
If you'd reread my input you'd realize that I said nothing about taking legal action. I did say that the implied threat of legal action usually does the job as in something like, "Gee that ramp is slippery. A couple of people have already slipped on it. I hope no one sues your butt into the stone age."
Also, how did you get to "class action legal suit?"
