Only 5 Bikes?

OK - we went to Callaway Gardens today to see the hot air balloons. The day was actually really nice - weather was great, there was a slight breeze and the kids had a great time... Well, all except Haydn. I could tell he wasn't feeling well and wound up sitting in someone's lap for the entire day. On the way home, we got behind the truck pictured here. I could tell it had at least 3 bikes on it. But, when they turned left, we counted 5 bikes!!!