How about "following someone while talking to police on the phone" is not illegal?
Didn't some enterprising legislature someplace make a law about things that are not unlawful.
The "Not Unlawful to Drink Tea" law. "C'mon, O'Mara, where's the "OK to drink tea law? and the "OK to people watch law?" and the "OK to keep track of people in your neighborhood law?"
“following someone now unlawful”
Crap, they better arrest me then. I did that yesterday to someone who did not belong in our neighborhood which has been recently plagued with burglaries. I asked him if he was looking for something and he drove away PDQ. I might have also muttered something like “fucking punks always get away”.