Can revoking consent for an ufficer to search give a police officer an indication of probable cause to obtain a search warrant?

No. The officer would have to have other reasons than a revoked consent. Revoking a consent does not lead to the officer having a 51%/ more likely than not justification that there is evidence of a crime. There has to be other factors that play into it. And even if he does have probable cause he would need to get the warrant and then continue the seach.