To answer your question, no…
Could you have hit a pothole or other bumps in the road and knock it out of alignment, yes…
The best thing to do is have it checked…The print out of the alignment should show the alignment specs and green good, red bad… lol
BTW I have lifetime alignments on every vehicle in my fleet since 2004 except for my new truck, but will include it when I have it checked, but I check and align all of them every 5,000 miles for best wear as well as handling and braking… They are almost always out a little…But the Nashville area is not known for having smooth roads either… lol