question about the lower control arm bushing being siezed

Long story short i got total chaos alignment tabs welded on my truck and the shop told me that they couldnt do a alignment because the bushings are siezed and they just cant do a alignment on it. But they were alble to pull the alignment cam bolt out in order to weld the tabs on and what not so with that being said can the bushing still be siezed in there avoiding aligment they said the bushings are in good condtion just minor corrsion. thanks for the help guys and i know they didnt cut any bolt or anything like that because i have the truck now and all tabs are welded on and of course the alignment is off due to them pulling out all the alignment cam bolts.