I can understand how you might feel ripped off that they didn't to more work for the price paid. But the way I see it, they adjusted several of your alignment settings (granted not by much ) and in the end they were all within spec. I'm not sure what more you expected? Most alignment specs give a range of numbers, so the tech does not have a pinpoint to aim for. Maybe you should have told them exactly what numbers you wanted within those specified ranges?
I have paid for the lifetime alignment service from Firestone, for both my vehicles. At my local shop's prices, two regular alignments would pay for the lifetime service so it is a no-brainer since I plan to keep them both (and live here) for years. Also, Firestone offers a complete vehicle inspection for $19.99, it includes brakes suspension and alignment checks, among other things. Of course this is their way to get you into the shop and recommend services. The $20 inspection is an absolute bargain, because you can take their report to another shop to get the work done, if you wish.
I have paid for the lifetime alignment service from Firestone, for both my vehicles. At my local shop's prices, two regular alignments would pay for the lifetime service so it is a no-brainer since I plan to keep them both (and live here) for years. Also, Firestone offers a complete vehicle inspection for $19.99, it includes brakes suspension and alignment checks, among other things. Of course this is their way to get you into the shop and recommend services. The $20 inspection is an absolute bargain, because you can take their report to another shop to get the work done, if you wish.