Not alarming but it has me scratching my head about what was going on in this driver's mind.

I left a little later this morning and since traffic seems to double every ten minutes I found myself amongst more cars than I am used to. As I approached a red traffic signal, there were about 15 cars lined up in the right of two travel lanes. The street has a wide bike lane at that point so I filtered up to the light stopping just behind the first in line. The light turned and all started moving, but there was another red light at the next intersection a few hundred feet down the road, so all the cars that passed me had to stop once more. The last car that passed me pulled way over to the right into the bike lane obviously intending to block me from filtering again. I saw that the left travel lane was clear so I just moved over and stayed in the left lane. The right lane is a turn only at the next intersection so I have to move to the left anyway, just not as early as I did this morning. Anyway, the thing that is most disturbing is that as I passed this person he or she accelerated suddenly as if to prevent me from moving to the right again. What's with this? It's 6:30 in the morning, we're all going to work, my presence on the road is not affecting anybody's commute. Why play these silly games?