I'm not a Doc so I don't know the answer. I can tell you that if it is cancer, waiting only lets the cancer grow. Book an appointment, and you can ask the lab to send the results to Dana-Farber. If the results are not available for your appointment, your Doctor will handle it.

If it is a very long drive to Boston, you could check to see if D-F has affiliate hospitals in Maine. I know they work with several in other parts of MA. Remember, if it is cancer, a long ride is the last thing to worry about.
A quick Google search shows two affiliates in Brewer and Topsham, ME. Note the statement that Dana-Farber is not responsible for the care provided at these locations:
Benefits of Collaborative membership
Dana-Farber Collaborative membership enhances educational opportunities for member hospitals' staffs; offers opportunities for members to consult with medical specialists at Dana-Farber in Boston; and provides members with expedited access to Dana-Farber's main campus in Boston for their patients with complex cancers. Members can also take advantage of access to Dana-Farber support services, such as on-site specialty second opinion clinics, clinical trials, tumor board conferences, and physician lectures.

Dana-Farber is not responsible for the care provided at these locations.

Members of the Dana-Farber Cancer Care Collaborative — Adult Medical Oncology
Berkshire Medical Center Cancer Center, Pittsfield, MA
Cape Cod Hospital, Hyannis, MA
Eastern Maine Medical Center (EMMC) Lafayette Family Cancer Center, Brewer, ME
New England Cancer Specialists, Kennebunk, Scarborough, and Topsham, ME