Is this an acceptable alignment?

I see only 2 specs that are still out of range: FR caster and RR toe. They should explain to you why they are still slightly off and what it would require to correct the situation. Perhaps a suspension part is bent from hitting potholes or maybe something is worn out. It would not be unreasonable if you asked them to try the alignment a second time.

 

As far as I know you can't do any adjustments with the rears, unless you start playing with shims, and that is not trivial.

With the front the toe is readily adjustable, camber can be done too, but again, not trivial: it requires replacement of the two main shock/coil tower clamping bolts (with alternate, narrower Toyota bolts).

The only things I can see an alignment shop doing in a routine alignment job, is to check and report on everything, and adjust front toe if needed.

I think the attachment is just the front alignment info. If anyone's interested I can dig up the rear as well.