Smoke shops, tobacco stores and mixed-use establishments shall not be located within 2,000 feet, measured property line to property line, from a school (private, parochial or public), family day-care home, child-care facility, youth center, community center, recreational facility, park, church or religious institution, hospital, or other similar uses where children regularly gather. This distance shall be measured in a straight line from the closest exterior wall of the building or portion thereof in which this significant tobacco retailor is located to the closest property line of the protected district or use, regardless of the municipality or zoning district in which it is located.