Toyota Repair: 65 mph shimmy, wheel weights, routine service

Question
My 2001 Camry was recently fitted with four new tires, balanced and aligned. A bit later, it went through routine service. At about 125K miles, it runs smoothly.  Last week I hit a curb with the left rear wheel while entering a highway and as I hit the 65 mph range, there was a new shimmy (which has persisted).  I brought the car to the tire dealer, who told me that the tires were still balanced and unharmed.  If the shimmy is not due to tire damage or imbalance, what else might cause it?

Answer
It's pretty obvious what causes the shimmy, you probably bent the wheel or the wheel weights came off,have someone else look at it that may be more objective, the tire dealer doesn't seem to be willing to have an answer for you after they got their money from you. Even if they found that the problem is not the wheel/tire they should at least test drive it, which they obviously didn't do, to verify the condition and then let you know what the problem may be.