First off, I don't really like tattoos or gauged ears. I feel that tattoos are something that people end up regretting later on in life and are disrespectful to the gift (our body) God has given us (yes, my bias is mainly based on religious beliefs). However, this doesn't mean that I don't allow others their free agency (choice) to do what they will, it just means that I won't do those things.
As per being judged, I think that's a harsh term to use. Granted, there may be some bible-thumping relious nuts out there who are actually judging you as a person because of the way you look; however, most people that look at you strangely is because you just look strange. Tattoos and gauged ears (body modification) is not normal. The majority of people do not have multiple tattoos or guaged ears, so it's unusual and people notice. It's just like the black guy walking around downtown Santaquin - people look. They're not looking at him because there's anything wrong with being black, it's just that seeing a black person in rural Utah is not common. Some people would claim this added attention as racism, but it has nothing to do with race, but more about what is common and therefor ignored.
When you look different than the majority of people, you can expect to be looked at differently, be it carrying a gun on your hip, having tattoos, guaging your ears, or having a different skin color. It's impossible to know what the majority of these people are thinking and thus improper to assume they are judging you based on their religious principles.
On a side note, you judge (evaluate would be a better word) people every day. What about the shady guy in the parking lot at night or the group of punk kids who enter the convenience mart acting all boistrous or even the little old lady trying free a jammed cart at the grocery store. You assume that the guy may be up to no good, the punks might become violent or theive and that the old lady needs help; all of which could be completely incorrect. What we need to be careful about is judging someone's character without sufficient evidence. Evaluating someone's appearance and making decisions is a survival mechanism and the basis for the color awareness system. If you stay in condition yellow, you MUST evaluate people all the time and this awareness will help keep you alive.
Don't take it offensively, people will do what they will do, the only thing you can control is how you behave and the impression you leave in their minds.