Well, for the AP, not just with 111. It’d take one more college semester to take the AP exam :).
High School French 3 would just be a repeat of 2/3 of the 102 content so it’d be an easy A, but alas, you either need 1 more semester of college French, or 2 years of HS French,before he could take the exam.
I don’t think Engineers have a language requirement for college graduation, but the credit would likely count - check with the School of Engineering.