It's funny, I thought the fridge scene was ridiculous, but only marginally more so than the life raft scene in Temple of Doom. It didn't wreck the movie for me.
What damaged it were a number of scenes that just feel really "off" somehow (like the quicksand scene), some pacing issues, bad comedy, a very weak climax, the least interesting villains of the series, an uncharismatic sidekick (not LaBeuf's fault, but when Shortround is more charismatic and likable, it's kind of a weak character) and not enough Indy action. I mean, Indiana doesn't shoot ANYBODY. Lame.
But, it's still an entertaining film overall, and I thought Harrison Ford was still great in the role.