Help unblocking restricted website?

[ahddub]

I went to starbucks and connected to their wifi. While browsing on their internet connection i got restricted access to certain websites, such as TMZ. When i went home and I tried to access these websites, I get the same error message (that my access is restricted), which is crazy, because I was always able to access these websites with my home internet connection. I tried bypassing the access, by googling the website, and access less important links, but whenever i click the main link, like in this case, TMZ I get the same restricted access message. I also tried restarting the computer and deleting all my cookies. Any suggestions to removing this restricted access message?

Im using a mac computer.