For many people, the police are an actively antagonistic threat, not protectors of safety. In this very case, they used legal threats against her. Why would she trust them with her safety?
First off, the issue would probably get routed to the local police who take these kinds of calls, not the state police who planted it.
This would probably create some paperwork that would frame the event as a crime before it comes to light that the state police were behind the planting. Bring in a good lawyer and you might have a better shot in court over this nonsense.
Regardless, if you're not trained, probably best not to destroy a suspected bomb on your own unless you have no choice.
How is she to know that they were state vs local police, and whether they were working together.
Besides, it seems clear to me she only "didn't know if it was a bomb" at first, but at some point likely after taking to NAACP, she found out it was a tracker. So therefore at no point in time was she thinking she was disposing of a bomb. That's a fantasy.
(You call the bomb scenario a fantasy, but that is what this sub-conversation is really about and it's the scenario you were responding to up thread.)