I drive 60 in a 65 2x/day for 25 miles every day, right lane of 3 while ambient traffic is generally 70ish. When a series of acceleration lanes comes up, I pop into the next-to-right lane for the duration, speed up to 65 in there to avoid making anyone coming behind to slam the brakes.

I have never had anyone give me more than a sidelong look, and frequently get a few cars hanging in line behind me perfectly happily for miles on end.