I've thought about doing this in the past. Probably not a good idea. lol
Houston woman arrested for warning drivers of speed trap Natalie Plummer was searched without consent, had two iPhones broken and spent 12 hours in jail.
BY RYAN GORMAN / NEW YORK DAILY NEWS
Thursday, June 28, 2012

Natalie Plummer holds a sign that reads 'Speed Trap.' Plummer was arrested and spent 12 hour in jail for holding the sign.
A Houston woman thought she was being helpful when she stood on the side of the road last week holding up a sign warning of a speed trap ahead, but police thought otherwise and tossed her in jail last week.
Natalie Plummer says a Houston cop jumped out of his car, searched her without consent and told her she was being arrested for obstruction of justice, an automatic three to five years in prison, reports KTRK. She spent 12 hours in jail and ended up being charged with "walking in the roadway where there is a sidewalk present, a misdemeanor.
Plummer says she did not leave the sidewalk.
"I for sure did not step into the street," Plummer told the station. "(I stayed) on the sidewalk the entire time."
Plummer also claims the cop broke two iPhones she had in her backpack.

One of the two broken iPhones owned by Natalie Plummer, who says the screen was cracked while a Houston cop searched her bag without consent.
Plummer told the station she made the sign saying "Speed Trap!" out of a grocery bag because she thought the cop was unfairly pulling random people over and she wanted to help people avoid being ticketed.
"He couldn't take me to jail for holding up this sign or he would have. So all he could do was make up something fake about it," she added.
The Houston Police Department refused to talk to the station about the issue, with a spokesperson saying only that Plummer "was in the roadway" and "was a danger to herself and others...which is an arrestable offense."
http://www.nydailynews.com/news/national/houston-woman-arrested-warning-drivers-speed-trap-article-1.1104317