clutch issues after a 4 wheel replacement and front end alignment

Hi,
I have a 98 Nissan 200SX with around 120,000 miles. Yesterday I got a flat tire and needed 4 new tires and a front end alignment. After I picked it up my clutch pedal was completely different. It used to be hard to press to the floor to shift and now it goes right down. I'm not sure how most clutches work...mine has always been pretty stiff. I replaced the entire clutch around 2 and a half years ago. It's still shifting fine but when I drove it today the clutch pedal keeps sticking, like it won't pop back up when I take my foot off it. Any ideas for what could be wrong?
Email me with responses. Haleyuk@gmail.com
Thanks

maybe you should take the clutch out and do a clean up but if that dont work maybe you should try going back and ask what happened maybe they could of screwed up the axels and may of affected the clutch .... soz if i didnt help lol

theres nothing in a wheel replacement or alignment that has anything to do with the clutch. i suggest asking the shop what happened.