Numerous ISPs including Verizon, Comcast and Time Warner are about to become copyright cops.
ISPs to Start Throttling Pirates, More by July 12 : Read more
ISPs to Start Throttling Pirates, More by July 12 : Read more
It doesn't matter what "block" methods you use...the traffic is still routed through your ISP's system, it goes to your modem regardless of what masks you use.
I guess skittle beat me to it...But ISP cannot snoop packets through VPN because they are encrypted. On that note, all SSH traffic cannot be monitored, all they know is that its encrypted.