bro, just get a good tour guide, bring a camera and forget about twitter for a few weeks, whats the problem with that?
locals use VPNs, sometimes they work, sometimes they dont... gov has on/off switch so you are at their mercy, but honestly do you need access to US social media when on a vacation in a desert?
No, I don't do SNS. I created it to show it to the police. Looks like "I don't have any social media" is considered to be suspicious and you are "hiding" something. At least that's true in the US. I don't know about Iran though.