Help my crock pot turned off and I didnt know.then I turned it back on?

I am cooking a pork shoulder 3lbs in my crock pot it cooked for a good three hours and then mypot shut off ( because of a timer I didnt know was set) it sat for probablly 2 hrs before I realized this . I turned it back on high is this ok , im worried about safty of the meat now and taste.