1. A trustee exercising a power of sale granted in any security instrument may, in his discretion, continue the sale without readvertisement or mailing additional notice by announcing or causing to be announced on the day and at the time and place of sale the fact of such continuance. The announcement shall contain the date, time and place to which the sale is continued. No party shall have a cause of action for damages against a trustee for continuing or refusing to continue a sale as provided in this section.

2. Only one continuance shall be made under the authority granted by this section, which continuance shall be for a period of not to exceed seven days. The provisions of this section shall not prevent the holder of a security instrument and the owner of the land encumbered thereby from agreeing to more than one continuance or to continuances for more than one week. Nothing in this section shall prevent a trustee from abandoning a sale before its completion and commencing new sale proceedings after compliance with sections 443.310, 443.320 and 443.325.