The woman who reported it was a patron of a restaurant.

I seriously doubt three credible conspirators would be discussing a plot like this in public in terms which could be understood. I seriously doubt conspirators on their way to blow up Miami will call attention to themselves by running a toll booth.

Especially if the alleged conspirators were darker skinned.

I'm not sure what can be done. I know that if anyone wants to hassle their neighbor, all they would need is a 9-11 call from a pay phone and the cops will tear the house down. (Spread some of the material from a 4th of July sparkler around, and ya gotcher evidence of "explosives" for the dogs.)

It's tragic.

Arf