I can hear similarities in the bass line but I don't really feel it's a rip-off. Many songs sound alike, within reason, and as more songs are created, there's nothing but the past from which to draw inspiration. Sampling was created in the 80s, and it's very possible that either Ray Parker Jr. or Huey Lewis heard this song. I don't feel as though three seconds of one layer on a song, looped, can truly be owned, as it's already been reduced to a simple note sequence, separated from the other elements, and there are only so many notes to work with.
Some of you might find this video interesting. It explains how one drum riff from 1969 has shaped numerous musical genres to this day. It demonstrates that this sort of repetition is quite commonplace and can't legitimately be considered theft.