Citizen cell phone caller in New Hampshire anonymously reports erratic driver exiting highway. Responding police find matching vehicle in rear parking lot of closed fast food restaurant, but car is no longer running and subject is outside car. Officer notes odor of alcohol, glassy eyes and slurred speech. Field sobriety tests are administered but of questionable value in light of driver’s high heels and congenital orthopedic conditions. NH DWI charge dismissed prior to trial.