I agree with you there. I'm not sure why he'd make a stop by 100 Eaton St. before proceeding up 69. I still feel that it was infact the phone that was found and he wanted to ditch that first before they had any chance of tracking it at all. He knew that he'd be spotted a little time and it only took 10 minutes to get from her house to the address.
That leads to the next point. It really doesn't make sense for him to randomly choose 100 Eaton St. as an address to get rid of a piece of evidence. I feel he either had a connection with a business in that vicinity or was indeed trying to throw search efforts off. If he were truly trying to hide it, there are about 100 other ways to dispose of it without leaving it in sight. He could have thrown it in one of many rivers or bodies of waters, thrown it into some thick brush, put it in a dumpster, etc.
He then continues up 69 and starts to cut across. I'm not sure why he would throw the lunch bag out unless my original thought is correct and he already had disposed of everything else and found the lunch box still in the car. I think this is why they feel he is 50+ miles away. He chose to dispose of evidence nonchalantly rather than hide it well to give even less of a lead.
