No, filing a motion to quash service of summons based upon the facts you stated is not smart. If you received a set of the summons and complaint by regular U.S. mail, most likely, the plaintiff will claim you were properly served by substitute service.
California Code of Civil Procedure section 415.20(2):
"If a copy of the summons and of the complaint cannot with reasonable diligence be personally delivered to the person to be served as specified in Section 416.60, 416.70, 416.80, or 416.90, a summons may be served by leaving a copy of the summons and of the complaint at such person's dwelling house, usual place of abode, usual place of business, or usual mailing address other than a United States Postal Service post office box, in the presence of a competent member of the household or a person apparently in charge of his or her office, place of business, or usual mailing address other than a United States Postal Service post office box, at least 18 years of age, who shall be informed of the contents thereof, and by thereafter mailing a copy of the summons and of the complaint (by first-class mail, postage prepaid) to the person to be served at the place where a copy of the summons and of the complaint were left. Service of a summons in this manner is deemed complete on the 10th day after the mailing."
Alternatively, if you look inside the envelope, was there a Notice and Acknowledgment of Receipt form inside?
In any event, you are better off responding to the summons and complaint instead of trying to spend your energies and the court's resources in challenging service.
Frank W. Chen has been licensed to practice law in California since 1988. The information presented here is general in nature and is not intended, nor should be construed, as legal advice for a particular case. This posting does not create any attorney-client relationship with the author. For specific advice about your particular situation, consult with your own attorney.
I agree with Mr. Chen regarding substituted service and regarding focusing your energy.
The above is general legal and business analysis. It is not "legal advise" but analysis, and different lawyers may analyse this matter differently, especially if there are additional facts not reflected in the question. I am not your attorney until retained by a written retainer agreement signed by both of us. I am only licensed in California. See also avvo.com terms and conditions item 9, incorporated as if it was reprinted here.