Anyone else recieved warped records via mail?

I'm kind of concerned about ordering records via mail anymore during the summertime. I've been ordering for quite sometime now, but I don't think I've ever recieved a perfect record. They're delivered to my apartment box which is shaded and remains cool, but every record I recieve has a very slight wobble. I watch the tone arm and it will move just a tad. Records are still playable, but I'm worried about it. Is this common for other folks or records in general? I imagine I should be more concerned about the time the vinyl spends in the USPS truck than my post box. I think I'm going lay off for the summer.