Enforcing non-compete agreements

Assuming that you did not sell this business, and there are no problems with the disclosure of trade secrets, and no reason why some other state's law should apply rather than California's, no.  California has by far the strictest policy in the nation against non-compete agreements.  In fact, it can be considered an unfair labor practice under California law for an employer to try to enforce a non-compete agreement.  Take a look at California Business and Professions Code Section 16600, 16601, and 16602.