This chapter applies to all services customarily and historically provided by state employees, except:

(1) As described in RCW 41.06.142(3) and 41.06.070;

(2) In the case of emergency purchases, which may be made in response to unforeseen circumstances beyond the control of the agency which present a real, immediate, and extreme threat to the proper performance of essential functions or which may reasonably be expected to result in excessive loss or damage to property, bodily injury, or loss of life. When an emergency purchase is made, the agency head shall submit written notification of the purchase, within three days of the purchase, to the director of general administration. This notification shall contain a description of the purchase, description of the emergency and the circumstances leading up to the emergency, and an explanation of why the circumstances required an emergency purchase; or

(3) If state employees will not be displaced.