Rear Suspension Shock Absorber problems of the 2010 Toyota Camry

Tire dealer informed me that left front and right rear struts were leaking and that all four should be replaced. Took car to Toyota dealer (car under extended warranty), where dealer said he would replace only left front strut, and that some leaking was acceptable (manufacturer's policy). Strut was replaced. However, wheels were not aligned, as is important whenever struts are replaced. Also, it's not good practice to replace only one strut--no one replaces only one tire (or on older cars, one shock absorber) for the same reason--it can create a dangerous imbalance. Toyota's leaking strut policy needs to be investigated.