No to dry needling. If PTs want to do dry needling, become a TCM Practitioner
Title says it all, Acupuncture Physicians are masters in their medicine for a reason. There's a lot more to acupuncture than a simple week long course that untrained PTs are unaware of. Learning indications and contraindications is a merely a basic understanding of what a physician is doing to a patient.
Again, no to dry needling. If you want to practice acupuncture, get adequate training that exceeds a week long or a month long exercise.