But in that case, pretending to be a blind prirate makes even less sense!

From the National Park Service website:

Report invasive species. Locating invasive species just as they are beginning to invade an area and treating new infestations quickly is a management approach called Early Detection Rapid Response (EDRR). In a national park, let a ranger know when you spot invasive species. They will want to know the location (GPS coordinates if possible), the name of the invasive species, when you saw it, and photos of the species.

So thoroughly note it and report that stuff!