Front end alignment problem

I have the heavy OME springs frt & rear on my DCSB 2013 Tacoma
Every time I take it for oil change to the dealer they check the alignment and tell me its off a little and needs to be corrected.
I told them I had put the OME in and I would take care of getting it aligned
They told me it would be covered under warranty and I let them do it last week.
They charged me $99.00 for a 3 month warranty alignment. Oh well it had after market springs, when they brought the truck around I mentioned their price was 30.00 high then a real good place in town and it had a 1 yr warranty, well they refunded my $99.00 said it should be warranty any way.
OK all that's great, but since I picked it up I hear a metal to metal grinding noise when going over speed bumps in parking lots and at take off in the street.
I have no idea what they would have had to unbolt to do an alignment but the noise started right afterwards.
I need to take it back tomorrow to have them check it out before a road trip on Weds.