Sorry to hear about the alignment issues. I've had nothing but alignment issues since the 2.5" lift rods were installed. Firestone ($150) and Goodyear service centers ($150 after firestone price match) are you're best bet to get unlimited lifetime alignments.
I initially had firestone and went back 5 times within a few months to different shops to fix my alignment. The problem is our air suspension adjusting while stationary. Rear or front will drop an inch or so, with our without it running. I even had it ON for an hour while firestone aligned it, and its still no good.
Goodyear happened to have an opening on my busy day and I didn't want to deal with firestone taking over an hour to align it, so I paid the $150 for the (30 min job) lifetime alignment. This go around I had my gap iidtool and set it to tight tolerances. Little to say, it was the best alignment ever.
Gap iidtool definitely was worth the money in troubleshooting, reading/clearing faults, ride height adjustment, clearing adaptions, updating ecus, and alignments.
That's just my 2 cents.