(a) Surveyors shall have the right to enter on public or private land or waters, except buildings, in the lawful pursuit of their occupations and shall be immune from arrest for trespass when performing their duties as prescribed in this subchapter.
(b)
(1) Where practical, surveyors shall announce and identify themselves and their intentions before entering upon private property.
(2) Surveyors will carry means of proper identification as to their registration or employment and will display the identification to anyone requesting it.
(3) Surveyors shall not use the privilege granted herein to extend that point of entry as determined by actual survey requirements.